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Publications

Patents

  1. A. S. Gandhi, H.U. Gandhe, I. Longkumer, “Thermal barrier coating with low thermal conductivity, made of multicomponent equimolar “high entropy” oxide ceramic," Indian Patent #381163 (Nov 2021), Application No. 201921032434 (Aug 2019).

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Book Chapter

  1. “Materials Aspects of Thermal Barrier Coatings," A. S. Gandhi, In: Handbook of Advanced Ceramics and Composites. Eds. Y.R. Mahajan and Roy Johnson, Springer, Cham (2020).

  2. “Metastable phase selection and low temperature plasticity in chemically synthesized amorphous Al2O3-ZrO2 and Al2O3-Y2O3," A. S. Gandhi, A. Paul, S. S. Shekhawat, U. Waghmare, V. Jayaram, in 'Oxide Nanostructures: Growth, Microstructures, and Properties', Ed. A.K. Srivastava, Pan Stanford Publishing (April 2014).

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Standard Database Contribution

  1. A. Mohan, A. S. Gandhi, ICDD Powder Diffraction File™, File Number: 00-073-0266, PDF-4+ 2024.

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Journal Publications​

  1. V. Hastak, E.J. Gildersleeve, S. Batna, A. S. Gandhi, S. Sampath, " On the oxygen vacancy annealing in air plasma sprayed YSZ thermal barrier coatings," J. Am. Ceram. Soc. (accepted Aug-2023).

  2. A. Mohan, A. Udayakumar, M. Kamaraj, A. S. Gandhi, " Impact of high temperature and water vapor on the oxidation behavior of CVI-SiCf/SiC composite," J. Mater. Eng. Performance, https://doi.org/10.1007/s11665-023-08693-9 (2023).

  3. A. Mohan, V. Hastak, A. S. Gandhi, “Design and Synthesis of a Stable Multicomponent Equimolar High Entropy Oxide with Spinel Structure," Materialia (20) 101259 (2021).

  4. R. Sagar, A. S. Gandhi, “Structural and electrical studies of Ni‑ and Co‑substituted Mn3O4," Applied Physics A (2021) 127:84.

  5. S. Raghunandan, R. S. Kumar, M. Kamaraj, A. S. Gandhi, “Role of water in the sol-gel synthesis of yttrium monosilicate," Ceram. Int. 45, 4487-4492 (2019).

  6. N. Indumathi, S. S. Bhattacharya, A. S. Gandhi, “Thermal stability and crystallisation behaviour of amorphous alumina-yttria synthesised by co-precipitation and combustion synthesis," Ceram. Int., 45, 2368-2380 (2019).

  7. S. B. Anantharaman, V. B. Rajkumar, S. Raghunandan, K. C. Hari Kumar, R. S. Kumar, A. S. Gandhi, “Role of thermodynamic miscibility gaps in phase selection in sol-gel synthesis of yttrium silicates," J. Eur. Ceram. Soc., 37, 5001-5007 (2017).

  8. R. Raja Madhavan, A. S. Gandhi, K. V. G. Kutty, “Sodium titanium phosphate NaTi2(PO4)3 waste forms for immobilization of simulated high level waste from fast reactors," Ceram. Int. 43, 9522–9530 (2017).

  9. A. Mohan, A. Udayakumar, A. S. Gandhi, “High temperature oxidation behaviour of CVD β-SiC seal coated SiCf/SiC composites in static dry air and combustion environment, Ceram. Int. 43, 9472–9480 (2017).

  10. A. Loganathan, A. S. Gandhi, “Toughness evolution in Gd and Y stabilized zirconia thermal barrier materials upon high temperature exposure," J. Mater. Sci., 52, 7199–7206, (2017).

  11. R. Djenadic, A. Sarkar, O. Clemens, C. Loho, M. Botros, V. S. K. Chakravadhanula, C. Kübel, S. S. Bhattacharya, A. S. Gandhi, H. Hahn, “Multicomponent Equiatomic Rare Earth Oxides," Mater. Res. Lett., 5, 102–109 (2017).

  12. A. Sarkar, R. Djenadic, N. J. Usharani, K. P. Sanghvi, V. S. K. Chakravadhanula, A. S. Gandhi, H. Hahn, S. S. Bhattacharya, “Nanocrystalline multicomponent entropy stabilised transition metal oxides," J. Eur. Ceram. Soc., 37, 747–754 (2016).

  13. K. Murugan, J. Joardar, A. S. Gandhi, B. S. Murty, P. H. Borse, “Photo-induced monomer/dimer kinetics in methylene blue degradation over doped and phase controlled nano-TiO2 film," RSC Adv., 6, 43563-43573 (2016).

  14. M. B. Ponnuchamy, A. S. Gandhi, “Phase and fracture toughness evolution during isothermal annealing of spark plasma sintered zirconia co-doped with Yb, Gd and Nd oxides," J. Eur. Ceram. Soc., 35, 1879-1887 (2015).

  15. M. B. Ponnuchamy, A. S. Gandhi, “Lattice expansion and contraction in nanocrystalline yttria stabilized zirconia powders," Scr. Mater., 83, 21–24 (2014).

  16. P. A. Manojkumar, A. S. Gandhi, M. Kamaraj, A. K. Tyagi, “Sliding wear behaviour of alumina coatings prepared from mechanically milled powders," Wear, 313, 11–18 (2014).

  17. K. Murugan, R. Subasri, T. N. Rao, A. S. Gandhi, B. S. Murty, “Synthesis, characterization and demonstration of self-cleaning TiO2 coatings on glass and glazed ceramic tiles," Progress in Organic Coatings, 76, 1756–1760(2013).

  18. N. Reddy, A. S. Gandhi, “Molten salt attack on t' yttria-stabilised zirconia by dissolution and precipitation," J. Eur. Ceram. Soc., 33, 1867–1874 (2013).

  19. B. R. Rao, M. Srinivas, A. K. Shah, A. S. Gandhi, B. S. Murty, “A new thermodynamic parameter to predict glass forming ability in iron based multi-component systems containing zirconium," Intermetallics, 35, 73-81 (2013).

  20. B. R. Rao, A. S. Gandhi, S. Vincent, J. Bhatt, B. S. Murty, “Prediction of Glass Forming Ability Using Thermodynamic Parameters," Trans. IIM, 65, 559–563 (2012).

  21. A. Loganathan, A. S. Gandhi, “Effect of phase transformations on the fracture toughness of t' yttria stabilized zirconia," Mater. Sci. Eng. A, 556, 927-935 (2012).

  22. A. Loganathan, A. S. Gandhi, “Effect of high temperature aging on the fracture toughness of ytterbia stabilised t' zirconia," Scr. Mater. 67, 285-288 (2012).

  23. P.A. Manojkumar, A. S. Gandhi, M. Kamaraj, V. T. Paul, N. Kumar, A. K. Tyagi, “Role of nanocrystalline feedstock in the tribological behaviour of alumina coatings deposited by detonation gun," Int. J. Refractory Metals and Hard Mater.,35, 108-114 (2012).

  24. R. S. Kumar, D. Sivakumar, A. S. Gandhi, “Processing and properties of silicon carbide and its composites containing MoSi2 and ZrB2," Mater. Sci. Eng. A, 540, 107-114 (2012).

  25. R. S. Kumar, D. Sivakumar, A. S. Gandhi, “Effect of molybdenum disilicide additions on the oxidation behaviour of silicon carbide," Scr. Mater., 66, 451-454 (2011).

  26. R. R. Madhavan, A. S. Gandhi, K. V. Govindan Kutty, “A novel and inexpensive wet chemical route for precursor synthesis of synroc monoliths," J. Nucl. Mater., 420, 554-558 (2011).

  27. R. S. Kumar, D. Sivakumar, K. Venkateswarlu, A. S. Gandhi, “Mechanical behaviour of molybdenum disilicide reinforced silicon carbide composites," Scr. Mater., 65, 838–841 (2011).

  28. B. R. Rao, A. K. Shah, M. Srinivas, J. Bhatt, A. S. Gandhi, B. S. Murty, “On prediction of amorphous phase forming compositions in iron rich Fe-Zr-B ternary system and their synthesis," Metall. Mater. Trans. A, 42, 3913-3920 (2011).

  29. V. V. Lakshmi, R. Bauri, A. S. Gandhi, S. Paul, “Synthesis and characterization of nanocrystalline ScSZ electrolytes for SOFCs," Int. J. Hydrogen Energy,36, 14936 - 14942 (2011).

  30. K. Murugan, T. N. Rao, G. V. N. Rao, A. S. Gandhi, B. S. Murty, “Effect of dehydration rate on non-hydrolytic TiO2 thin film processing: Structure, Optical and Photocatalytic Performance Studies," Mater. Chem. Phy. 129, 810-815 (2011).

  31. R. S. Kumar, A. K. Shukla, S. Babu, D. Sivakumar, A. S. Gandhi, “Densification of silicon carbide using oxy-nitride additives for space-based telescope mirror applications," Opt. Eng. 50, 070504-1 – 3 (2011).

  32. A. Loganathan, A. S. Gandhi, “Fracture toughness of t’ ZrO2 stabilised with MO1.5 (M =Y, Yb & Gd) for thermal barrier application," Trans. IIM 64, 71-74 (2011).

  33. K. Murugan, T. N. Rao, A. S. Gandhi, B. S. Murty, “Effect of aggregation of methylene blue dye on TiO2 surface in self-cleaning studies," Catalysis Communications 11, 518–521 (2010).

  34. B. G. Ravi, A. S. Gandhi, X. Z. Guo, J. Margolies, S. Sampath, “Liquid Precursor Plasma Spraying of Functional Materials: A Case Study for Yttrium Aluminum Garnet (YAG)," J. Thermal Spray Tech., 17 [1], 82-90 (2008).

  35. M. J. Stiger, N. M. Yanar, R. W. Jackson, S. J. Laney, F. S Pettit, G. H. Meier, A. S. Gandhi, C. G. Levi, “Development of Intermixed Zones of Alumina/Zirconia In Thermal Barrier Coating Systems," Met. Mater. Trans. A, 38A, 848-857 (2007).

  36. T. A. Schaedler, A. S. Gandhi, M. Saito, M. Rühle, R. Gambino, C. G. Levi, “Extended Solubility of CoO in ZnO and Effects on Magnetic Properties," J. Mater. Res. 21 [3], 791-801 (2006).

  37. T. Xu, M. Watanabe, C. G. Levi, A. S. Gandhi, A. G. Evans, “Shear band formation in columnar thermal barrier oxides,” Acta Mater., 53, 3765-3773 (2005).

  38. A. S. Gandhi, C. G. Levi, “Phase selection in precursor-derived YAG and related Al2O3-Y2O3 compositions,” J. Mater. Res., 20 [4], 1017-1025 (2005).

  39. T. A. Schaedler, W. Francillon, A. S. Gandhi, C. P. Grey, S. Sampath, C. G. Levi, “Phase evolution in the YO1.5-TiO2-ZrO2 system around the pyrochlore region,” Acta Mater., 53, 2957-2968 (2005).

  40. N. Thangamani, A. S. Gandhi, A. H. Chokshi, V. Jayaram, “Low temperature pressure consolidation of amorphous Al2O3-15 mol% Y2O3," J. Am Ceram. Soc., 88, 2696-2701 (2005).

  41. A. S. Gandhi and V. Jayaram, “Plastically Deforming Amorphous ZrO2-Al2O3," Acta Mater., 51, 1641-1649 (2003).

  42. S. Choudhury, A. S. Gandhi, V. Jayaram, “Bulk, dense nanocrystalline yttrium aluminum garnet by consolidation of amorphous powders at low temperatures and high pressures," J. Am Ceram. Soc., 86 (2), 247-251 (2003).

  43. A. S. Gandhi, V. Jayaram, “Pressure consolidation of amorphous ZrO2-Al2O3 by plastic deformation of powder particles," Acta Mater., 50, 2137-2149 (2002).

  44. C.K. Ullal, K. R. Balasubramaniam, A. S. Gandhi, V. Jayaram, “Non-equilibrium phase synthesis in Al2O3-Y2O3 by spray pyrolysis of nitrate precursors," Acta Mater., 49, 2691-2699 (2001).

  45. A. S. Gandhi, V. Jayaram, A.H. Chokshi, “Low temperature densification behaviour of metastable phases in ZrO2-Al2O3 powders produced by spray pyrolysis," Mater. Sci. Eng., A304-306, 785-789 (2001).

  46. A. S. Gandhi, V. Jayaram, A.H. Chokshi, “Dense amorphous zirconia-alumina by low temperature consolidation of spray pyrolyzed powders," J. Am. Ceram. Soc., 82, 2613-2618 (1999).

  47. C. Monty, H. Bousseta, A. Rouanet, F. Sibieude, A. Amdouni-Cheikh, A. Madani, C. Roucau, E. Snoeck, N. Brun, C. Georgescu, D. Lelievre, R.R. Piticescu, C. Carry, S. Begin-Colin, A. S. Gandhi, V. Jayaram, “Zirconia based nanomaterials: elaboration, characterization and transport properties," Inżynieria Materiałowa, XX (1), 29-31 (1999).

  48. A. S. Gandhi, V. Jayaram, A.H. Chokshi, “Phase evolution and densification of spray pyrolysed ZrO2-Al2O3 powders," Materials Science Forum, 243-245, 227-232 (1997).

  49. A. S. Gandhi, A. Saravanan, V. Jayaram, “Containerless processing of ceramics by aerodynamic levitation," Mater. Sci. Eng., A221, 68-75 (1996).

  50. D. B. Ganveer, A. S. Gandhi, N. D. Korpe, R. K. Paretkar, “Mathematical analysis for the determination of the exact flow curve equation for strain rate sensitive material in simulative formability testing," Modelling Measurement and Control B: Solid and Fluid Mechanics and Thermics Mechanical Systems, 50 [2], 29 (1993).

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Special Issue Editorial

  1. A. S. Gandhi, M. Balasubramanian, S.G.S. Raman, K.C. Hari Kumar, “Preface” (Editorial) Trans Indian Inst Met 68 [Suppl 2], 113 (2015).

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Conferences - Total 93 (25 invited talks, 5 proceedings, 63 presentations)

​Invited Lectures

  1. A. S. Gandhi, "Multicomponent Equimolar Oxides: Design and Synthesis," International Workshop on High Entropy Materials 23 (IWHEM-23), BARC, Mumbai, 23-25 Apr-2023.

  2. A. S. Gandhi, "Design and synthesis of novel multicomponent oxide ceramics," Platinum Jubilee Conference on Perspectives in Materials Research (PMR 2022), IISc, Bengaluru, 21-23 Dec-2022.

  3. A. S. Gandhi,* Harshad U. Gandhe, "Development of ‘High-Entropy’ Oxides for Thermal Barrier Coating Applications," 76th Annual Technical Meeting (ATM) of the Indian Institute of Metals (IIM), Hyderabad, 14-16 Nov-2022.

  4. A. S. Gandhi, "Development of Advanced Ceramics containing Rare-Earth Oxides: Design, Synthesis and Application," Half-Day Special Seminar on "Rare Earth Separations & Applications," Association of Separation Scientists and Technologists (ASSET), BARC, Mumbai, 27-Sep-2022.

  5. A. S. Gandhi, "Spectroscopic Characterisation of Thermal Barrier Coatings," Workshop on Thermal Spray Technologies, Jointly Organised by Department of Materials Engineering, IISc, and Pratt & Whitney R&D Centre, IISc, Bangalore, 15-Jul-2022.

  6. A. S. Gandhi, " Thermal Barrier Coatings: Raman Spectroscopy, New Materials," Workshop on Thermal Spray Coatings: Processing Structure Property Correlations through Multi Disciplinary Collaborations (ACADEMIA INDUSTRY COLLABORATION WORKSHOP), ASM International Bangalore Chapter, 18-Jan-2022 (Online Mode).

  7. A. S. Gandhi, “Rare Earth Silicates as Environmental Barrier Coatings for SiC Ceramics and Composites," International Conference on Advanced Materials and Processes for Defence Applications (ADMAT 2019 Mat Def), Hyderabad, India, 23-25 September 2019.

  8. A. S. Gandhi, “Design and synthesis of novel and metastable oxides: High entropy ceramics and alumina glasses," 26th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM 2019), Chennai, India, 8-12 July 2019.

  9. A. S. Gandhi, “Role of phase stability in durability of zirconia thermal barrier materials," Second International Structural Integrity Conference & Exhibition, Hyderabad, 25-27 July 2018.

  10. A. S. Gandhi, “Rare-Earth Silicate Environmental Barrier Coatings for SiC Ceramics and Composites," National Seminar on Development, Processing and Applications of High Temperature Materials – Current Trends and Challenges Ahead, Hyderabad, 22-23 February 2018.

  11. A. S. Gandhi, “Rare-Earth Silicate Environmental Barrier Coatings for SiC Ceramics and Composites," 81st Annual Session of Indian Ceramic Society, and International Conference on Expanding Horizons of Technological Applications of Ceramics and Glasses (EH-TACAG’17), Pune, 14-16 December, 2017.

  12. A. S. Gandhi, “Multicomponent Equimolar Oxide Ceramics," International Workshop on High Entropy Materials (IWHEM-2017), Hyderabad, 11-12 March, 2017.

  13. A. S. Gandhi, “Thermal barrier coating materials and durability issues," Advanced & Nanomaterials and Thermal Barrier Coatings for Transport and Energy application-(AVMTTEA-Jan2017), Visakhapatnam, 27-28 January, 2017.

  14. A. S. Gandhi, “Yttrium Silicate Environmental Barrier Coatings for SiC Ceramic Composites," The 4th International Conference on Advances in Materials & Materials Processing (ICAMMP-IV), Kharagpur, 5-7 November, 2016.

  15. A. S. Gandhi, “Phase stability and fracture toughness of thermal barrier coatings," Indo-US Workshop on Ceramic Coatings and Multilayers, Coorg, 25-28 February, 2016.

  16. A. S. Babu, P. Sishar, R. S. Kumar, A. S. Gandhi*, Sol-Gel Derived Yttrium Silicates as Environmental Barrier Coatings for SiC Ceramic Composites, 18th National Seminar on Aerospace Structures (NASAS), Nagpur, 15-17 December, 2014.

  17. A. S. Gandhi, “High Temperature Coatings for Aerospace Applications," Congregation of Ceramic Technologists (ConCerT 2014), Chennai, 12-14 March, 2014.

  18. A. S. Gandhi, “Degradation of Thermal Barrier Coating Materials," Recent Trends in Materials Chemistry (RTMC-2013), Vellore, 25-27 July, 2013.

  19. A. S. Gandhi, “Thermal Barrier Coatings Technology for Aerospace Applications," Prof. Brahm Prakash Birth Centenary Workshop on High Temperature Materials and Hot Structures (HTMHS2013), Thiruvananthapuram, 13-15 May, 2013.

  20. A. S. Gandhi, “Fracture Toughness of Rare-Earth Stabilised t’ Zirconia for Thermal Barrier Application," International Workshop on Mechanical Behaviour of Systems at Small Length Scales ‐ 4, Orange County Resort, 24 ‐ 28 February 2013.

  21. A. S. Gandhi, “Thermal barrier coatings for marine applications," National Conference on Advances in Naval Materials, Chennai, 22-23 February, 2013.

  22. A. S. Gandhi, “Challenges in developing coatings to improve performance," Indo-American Frontiers of Engineering Symposium, 1-3 March, 2012, Arlington, VA, USA.

  23. A. S. Gandhi, “Nanomaterials for Energy Technology," National Conference on Recent Trends in Nanoscience and Nanotechnology, Nagpur 20-21 December, 2011.

  24. A. S. Gandhi, “Thermal Barrier Coating Systems - Top Coats and Bond Coats," One-day Seminar on Thermal Barrier Coatings, Defence Metallurgical Research Laboratory, Hyderabad, India, 18 July 2008.

  25. A. S. Gandhi, “Sintering in Thermal Barrier Coatings," Focused Workshop on Contemporary Topics in Sintering, Coorg, Karnataka, India, 2-6 December 2007.

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Proceedings

  1. K. Paithankar*, D. Barbadikar, D.R. Peshwe, A. S. Gandhi, “Synthesis and characterization of mullite coatings," TMS Annual Meeting, 2, 91-98 (2011).

  2. T. A. Schaedler*, S. Girma, A. S. Gandhi, S. Sampath and C. G. Levi, “Metastable phase evolution in TiO2-YO3/2-ZrO2," in Solid State Ionics, ed. by P. Knauth, C. Masquelier, E. Traversa and E.D. Wachsman, Mat. Res. Soc. Symp. Proc. vol. 835 (2005), K3.11.1-6 (2004).

  3. N.R. Rebollo*, A. S. Gandhi and C.G. Levi, “Phase stability issues in emerging TBC systems," High Temperature Corrosion and Materials Chemistry IV. Ed. E. J. Opila, P. Hou, T. Maruyama, B. Pieraggi, M. McNallan, D. Shifler and E. Wuchina; Electrochemical Society Proceedings, PV-2003-16, 431-42 (2003).

  4. A. S. Gandhi*, V. Jayaram, and A.H. Chokshi, “Low temperature consolidation of metastable phases in alumina-zirconia," International Conference on Recent Advances in Metallurgical Processes, Vol. I, p.727, Bangalore, India (1997).

  5. A. S. Gandhi, V. Jayaram*, A.H. Chokshi, “Densification studies on amorphous ZrO2-Al2O3 powders,” Creep Behaviour of Advanced Materials for the 21st Century. Proceedings of Symposium. 1999 TMS Annual Meeting. TMS - Miner. Metals & Mater. Soc. 1999, pp.369-78. Warrendale, PA, USA.

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Conference Presentations

  1. A. Gupta*, A. Mohan, A. S. Gandhi “Bulk Alumina Glasses and Glass-Ceramics with Multiple Stabilizers,” XVIII ECerS, Conference and Exhibition of the European Ceramic Society, Lyon, France, 2-6 July 2023. 

  2. G. Waghmare*, V. Hastak, A. S. Gandhi, “Fabrication of functionally multilayered ytterbium silicate EBCs using slurry spraying – reactive sintering technique,” XVIII ECerS, Conference and Exhibition of the European Ceramic Society, Lyon, France, 2-6 July 2023.  

  3. I. Longkumer*, A. S. Gandhi, “Macro-Equimolar High Entropy Oxides with low thermal conductivity,” XVIII ECerS, Conference and Exhibition of the European Ceramic Society, Lyon, France, 2-6 July 2023.  

  4. A. Mohan*, A. Gupta, and A. S. Gandhi, “Local Structure Study on 8-Component Equimolar Spinel “High Entropy” Oxides using XPS and EXAFS”, 4th International Workshop on HIGH ENTROPY MATERIALS (IWHEM 2023), BARC, Mumbai, India, 23-25 April 2023. 

  5. V. Hastak*, E. J. Gildersleeve, S. Sampath, A. S. Gandhi, “Investigating phase transformations in air plasma sprayed commercial purity and high purity YSZ TBCs on high-temperature thermal exposure,” National Thermal Spray Conference (NTSC 2023), Jodhpur, India, 18-19 February 2023. (Best Paper Award)  

  6. S. Batna*, D. Srinivasan, A. S. Gandhi, “Raman spectroscopy to measure residual stresses in thermal barrier coatings” National Thermal Spray Conference (NTSC 2023), Jodhpur, India, 18-19 February 2023.  

  7. G. Waghmare*, A. S. Gandhi, “Fabrication of Functionally Multilayered Ytterbium Silicate EBCs for Jet Engine Application,” Prime Minister’s Research Fellows (PMRF) Scheme Annual Symposium, IIT Madras, Chennai, India, 17-18 February 2023. (Highlighted Poster)  

  8. G. Waghmare*, A. S. Gandhi, “Oxidation behavior of ytterbium silicate EBCs fabricated using slurry spraying – reactive sintering technique,” Indian Institute of Metals-Annual Technical Meeting (IIM-ATM), Hyderabad, India, 14-16 November 2022.  

  9. V. Hastak*, A. S. Gandhi, “Understanding the phase evolution on aging of YSZ powders and pellets above and below the T0(c/t) temperature," Indian Institute of Metals-Annual Technical Meeting (IIM-ATM), Hyderabad, India, 14-16 November 2022.  

  10. S. Batna*, G. Sivakumar, A. S. Gandhi, “Raman spectroscopy as a tool for stress measurement in Thermal barrier coatings for gas turbine engines,” Indian Institute of Metals-Annual Technical Meeting (IIM-ATM), Hyderabad, India, 14-16 November 2022. 

  11. G. Waghmare*, A. S. Gandhi, “Ytterbium silicate environmental barrier coatings prepared by a novel slurry spraying-reactive sintering technique,” Thermal and Environmental Barrier Coating (TEBC) VI, Engineering Conferences International, Irsee, Germany, 19-24 June 2022.  

  12. V. Hastak*, E. J. Gildersleeve, S. Sampath, A. S. Gandhi, “A comparative study of phase evolution in free-standing air plasma sprayed YSZ thermal barrier coatings, powders and pellets,” Thermal and Environmental Barrier Coating (TEBC) VI, Engineering Conferences International, Irsee, Germany, 19-24 June 2022.  

  13. S. Batna*, G. Sivakumar, A. S. Gandhi, "Simultaneous residual stress mapping of topcoat and TGO in APS TBC using combined micro-Raman-PL spectroscopy," Thermal and Environmental Barrier Coating (TEBC) VI, Engineering Conferences International, Irsee, Germany, 19-24 June 2022. (Best Poster award followed by invited talk) 

  14. V. Hastak*, A. S. Gandhi, “High temperature phase transformation studies in 8YSZ and 12YSZ samples synthesized by solution combustion method," 58th National Metallurgists Day And 74th Annual Technical Meeting (NMD­ ATM 2020), Indian Institute of Technology Bombay, Mumbai, India, 23-26 February 2021.  

  15. G. Waghmare*, A. S. Gandhi, “Ytterbium silicate environmental barrier coatings prepared by a novel slurry spraying-reactive sintering technique,” Prime Minister’s Research Fellows (PMRF) Scheme Annual Symposium (e-poster), IIT Delhi, 15 January 2021.  

  16. V. Hastak*, S. Sampath, A. S. Gandhi, “Phase transformations on aging of air plasma sprayed commercial purity and high purity 7YSZ thermal barrier coatings.” 3rd Structural Integrity Conference and Exhibition (SICE 2020 e-Conference), Indian Institute of Technology Bombay, Mumbai, India, 11-13 and 18-20 December 2020.  

  17. A. Gupta, A. Mohan, A. S. Gandhi “Bulk Alumina Glasses and Glass-Ceramics with Multiple Stabilizers,” XVIIIth Conference of the European Ceramic Society 2023, 2-6th July, Lyon, France.

  18. A. Gupta,* A. S. Gandhi, “Synthesis and Thermal Stability of Equimolar Eutectic Alumina-Rare Earth Oxide Glasses," 3rd International Workshop on High Entropy Materials (IWHEM 2020), Kanpur, 7-8 March 2020.

  19. H.U. Gandhe, I. Longkumer, H. Garg, A. S. Gandhi, “Multicomponent equimolar oxide ceramics (High Entropy Ceramics): Synthesis and phase selection," 3rd International Workshop on High Entropy Materials (IWHEM 2020), Kanpur, 7-8 March 2020.

  20. A. Loganathan,* S. Anantharaman, M.B. Ponnuchamy, A. S. Gandhi, “Influence of Annealing Temperature and Time on Phase Stability and Fracture Toughness of Rare-earth Stabilized Zirconia," Technical Meeting and Exhibition MS&T19 Materials Science & Technology, Portland, Oregon, USA, 29 September to 3 October 2019.

  21. A. Mohan* and A. S. Gandhi, “Multicomponent equimolar “high-entropy” ceramics with spinel structure: Synthesis, phase stability and characterization," 26th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM 2019), Chennai, India, 8-12 July 2019.

  22. I. Longkumer* and A. S. Gandhi Multicomponent equimolar “high entropy” perovskites: Synthesis, structure and thermal stability," 26th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM 2019), Chennai, India, 8-12 July 2019.

  23. S.B. Anantharaman,* S. Raghunandan, K.C. Hari Kumar, R. S. Kumar, M. Kamaraj, A. S. Gandhi, “Role of Thermodynamic Miscibility Gap in Phase Selection in Sol-gel Synthesis of (Y, Yb) Silicates," Materials Science & Technology 2018 (MS&T 2018), Columbus, OH, USA, 14-18 October 2018.

  24. H. Garg, H.U. Gandhe,* A. S. Gandhi, “Synthesis, phase selection and characterization of new multicomponent equimolar high entropy oxide ceramics," 81st Annual Session of Indian Ceramic Society, and International Conference on Expanding Horizons of Technological Applications of Ceramics and Glasses (EH-TACAG’17), Pune, 14-16 December, 2017.

  25. S. Raghunandan,* R. S. Kumar, M. Kamaraj, A. S. Gandhi, “Evolution of Phases in the Sol-gel Synthesis of Yttrium Monosilicate for Environmental Barrier Application," 81st Annual Session of Indian Ceramic Society, and International Conference on Expanding Horizons of Technological Applications of Ceramics and Glasses (EH-TACAG’17), Pune, 14-16 December, 2017.

  26. Indumathi N., S.S. Bhattacharya, A. S. Gandhi,* “Preparation and characterisation of alumina based glassy materials," Materials Research Society of India Symposium (MRSI-2017) Advanced Materials for Healthcare, Clean Energy and Sustainability & 28th Annual General Meeting of MRSI, 13-15 February, 2017.

  27. S. Bopte, J.U. Nandhini, A. Sarkar, A. S. Gandhi, S.S. Bhattacharya, H. Hahn, “Synthesis and Characterization of Multicomponent Rare Earth Oxides (REOx) Nanopowders Prepared by Reverse Co-precipitation," The International Conference on Functional Materials (ICFM-2016), IIT Kharagpur, December 12-14, 2016.

  28. N. Indumathi,* S.S. Bhattacharya, A. S. Gandhi, “Study on thermal stability and crystallisation behaviour of Al2O3-Y2O3 and Al2O3-Y2O3-TiO2 glasses," 6th International Congress on Ceramics (ICC6), Dresden, Germany, 21-25 August, 2016.

  29. S. Raghunandan,* M. Kamaraj, A. S. Gandhi, “Sol-gel synthesis of yttrium monosilicate," 6th International Congress on Ceramics (ICC6), Dresden, Germany, 21-25 August, 2016.

  30. J.U. Nandhini, Abhishek Sarkar, Kevin Paresh Sanghvi, A. S. Gandhi, and S.S. Bhattacharya, “Synthesis and characterisation of equimolar multicomponent nanoceramics," XII Congrés International sur les Matériaux nanostructures (Nano 2016), Québec City, Canada, 7-12 August 2016.

  31. S. Raghunandan,* M. Kamaraj, A. S. Gandhi, “Sol-gel synthesis and in-situ formation of yttrium silicates for environmental barrier coating applications," Indo-US Workshop on Ceramic Coatings and Multilayers, Coorg, 25-28 February, 2016.

  32. Kevin Paresh Sanghvi, J.U. Nandhini, Abhishek Sarkar, A. S. Gandhi, S.S. Bhattacharya, “Synthesis and Characterization of Equimolar Multicomponent Ceramic Nanocomposites," 4th International Conference on Advanced Nanomaterial and Nanotechnology (ICANN-2015), Guwahati, 8-11 December, 2015.

  33. Narender Reddy, A. S. Gandhi,* “Mechanism of Molten Salt Attack on Zirconia Based Thermal Barrier Materials," Engineering Conferences International ‘Thermal Barrier Coatings IV’, Irsee, Germany, 22-27 June, 2014.

  34. Anu Mohan,* A. Udaya Kumar, A. S. Gandhi, “Oxidation of a Sealed SiCf/SiCm Composite in Static Air and Combustion Environment," 38th International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach Florida, USA, January 26-31, 2014.

  35. P.A. Manojkumar,* A. S. Gandhi, M. Kamaraj, N. Kumar, M. Kamruddin, A.K. Tyagi, “Tribological properties of nanocrystalline alumina coatings deposited by D-gun," International Conference & Exhibition on Heat Treatment and Surface Engineering (HT&SE 2013), Chennai, 16-18 May, 2013.

  36. Narender Reddy, A. S. Gandhi,* “Degradation of zirconia based thermal barrier materials at 950°C due to sulphate-vanadate molten salts," International Conference & Exhibition on Heat Treatment and Surface Engineering (HT&SE 2013), Chennai, 16-18 May, 2013.

  37. Archana Loganathan, A. S. Gandhi,* “Toughness and Phase Evolution of Gadolinia Stabilized Zirconia for Thermal Barrier Coatings," International Conference & Exhibition on Heat Treatment and Surface Engineering (HT&SE 2013), Chennai, 16-18 May, 2013.

  38. A. S. Gandhi,* Jayaraj Radhakrishnan, “Nanostructured anodes for SOFCs through metastable phase evolution," 4th International Conference on Advanced Nano Materials, Chennai, 17-19 October, 2012.

  39. Mohan B. Ponnuchamy,* D. Srinivasa Rao, A. S. Gandhi, “Phase Evolution of Rare-Earth Oxide Stabilized Zirconia as Thermal Barrier Materials," International Workshop on Advanced Ceramics for the Future (ACF-2012), Chennai, 16-17 January, 2012.

  40. R. Raja Madhavan,* A. S. Gandhi, K.V. Govindan Kutty, “Synthesis and characterization of simulated sodium titanium phosphate (NTP) waste forms by a novel wet chemical route," International Conference on Vistas in Chemistry (ICVC-2011), Kalpakkam, 11-13 October, 2011.

  41. A. S. Gandhi,* Archana L., Mohan B. Ponnuchamy, “Fracture toughness of rare-earth stabilised zirconia thermal barrier materials: Effect of phase transformations," Engineering Conferences International ‘Thermal Barrier Coatings III’, Irsee, Germany, 7-12 August, 2011.

  42. Archana Loganathan, Mohan B. Ponnuchamy, A. S. Gandhi,* “Fracture toughness variation with phase transformations in rare-earth stabilised zirconia for thermal barrier application," The 48th National Metallurgist Day (NMD) and the 64th Annual Technical Meeting (ATM) of Indian Institute of Metals, Bengaluru, 14-16 November, 2010.

  43. Abhiram Muralidhar, K.C. Hari Kumar, A. S. Gandhi,* “Theoretical investigation of the effect of surface energy on the zirconia-yttria phase diagram’, The 48th National Metallurgist Day (NMD) and the 64th Annual Technical Meeting (ATM) of Indian Institute of Metals, Bengaluru, 14-16 November, 2010.

  44. Jayaraj Radhakrishnan,* Satish Kotupalli, A. S. Gandhi, “Role of metastability in nanostructured anode development for solid oxide fuel cells," The 48th National Metallurgist Day (NMD) and the 64th Annual Technical Meeting (ATM) of Indian Institute of Metals, Bengaluru, 14-16 November, 2010.

  45. R. S. Kumar,* A.K.Shukla, S.Babu, D.Sivakumar, M.V. Gopinath Pai, A. S.Gandhi, “Processing and Properties of Silicon Carbide Mirror Blanks for Space Applications," International Conference on Advanced Functional Materials, Thiruvananthapuram, India, 9-12 December, 2009.

  46. P. Mohan Babu, L. Archana,* A. S. Gandhi, “Phase stability and fracture toughness of yttria stabilised Zirconia for Thermal Barrier Coatings," International Conference on Advanced Functional Materials, Thiruvananthapuram, India, 9-12 December 2009.

  47. Prahlad Kumar, Narender Reddy, K.C. Harikumar, A. S. Gandhi, “Molten Salt Attack on Yttria and Ytterbia Stabilised Zirconia for Thermal Barrier Application," 63rd Annual Technical Meeting of Indian Institute of Metals, Kolkata, (2009).

  48. Y. Ragupathy, Sayan Ganguly, Satish Kotupalli, A. S. Gandhi,* “Chemical synthesis of nano-composite NiO-YSZ anode precursor material for solid oxide fuel cells through metastable effects," International Symposium & Exhibition on Fuel Cell Technology, Mumbai, India, 11-13 December 2009.

  49. R. S. Kumar,* D. Sivakumar, A. S. Gandhi, “Oxidation Behaviour of 30v%ZrB2-SiC & 30v%MoSi2-SiC Composites Under Different Condtions," International Symposium For Research Scholars On Metallurgy, Materials Science & Engineering (ISRS 2008), Chennai, India, 10-12 December, 2008 (ISSN0973-659X).

  50. P. A. Manojkumar,* P. Shankar, M. Kamaraj, A. S. Gandhi and A. K. Tyagi, “Detonation Gun Coating of Mechanically Milled Nano-crystalline Alumina Powders," International Conference on Nano Science & Technology (ICONSAT2008), Chennai, India, 27-29 February, 2008.

  51. R. S. Kumar,* D. Sivakumar, and A. S. Gandhi, “Processing and properties of electro-conductive silicon carbide matrix composites," International Conference on Advanced Materials & Composites (ICAMC2007), Trivandrum, Kerala, India, 24th - 26th October, 2007.

  52. N. R. Rebollo,* A. S. Gandhi and C. G. Levi, “Phase stability in RE co-doped emerging TBC systems," International Conference on Metallurgical Coatings and Thin Films, San Diego, USA (2004).

  53. R.M. Leckie,* A. S. Gandhi, C.G. Levi, S. Krämer and M. Rühle, “Diffusional interactions in layered TBC systems based on Gd2Zr2O7,” International Conference on Metallurgical Coatings and Thin Films, San Diego, CA, USA (2003).

  54. A. S. Gandhi,* R.M. Leckie and C.G. Levi, “Morphological evolution of TBC’s: evaluation by grain boundary grooving experiments,” International Conference on Metallurgical Coatings and Thin Films, San Diego, USA (2003).

  55. A. S. Gandhi,* C.G. Levi, S. Parukutyamma and S. Sampath, “Phase selection in Y2O3-Al2O3 powders synthesized from nitrate precursors,” 54th Pacific Coast Regional and Basic Science Division Meeting of the American Ceramic Society, Seattle, USA (2002).

  56. A. S. Gandhi and V. Jayaram,* “Low temperature densification and unconstrained plastic flow in amorphous zirconia-alumina," Conference on Perspectives in Physical Metallurgy and Materials Science, Bangalore, India (2001).

  57. A. S. Gandhi,* V. Jayaram, S. Choudhury and A.H. Chokshi, “Development of ceramic composites with amorphous and nanocrystalline phases in alumina-zirconia and alumina-yttria systems through a novel high pressure densification route at low temperatures," United Engineering Foundation Conference on Processing of Fibers and Composites (Polymeric, Metallic, and Ceramic), Castelvecchio Pascoli, Italy (2000).

  58. C.K. Ullal, A. S. Gandhi, K.R. Balasubramanian and V. Jayaram,* “The preparation of thin films of yttrium aluminium garnet by solution routes," United Engineering Foundation Conference on Mechanical Properties of Films, Coatings and Interfacial Materials, Castelvecchio Pascoli, Italy (1999).

  59. A. S. Gandhi, V. Jayaram,* and A.H. Chokshi, “Consolidation of amorphous phases in ZrO2-Al2O3 at 650°C," Materials Processing '97, Santa Barbara, USA (1997).

  60. A. S. Gandhi, V. Jayaram,* and A.H. Chokshi, “Hot pressing of amorphous ZrO2-Al2O3," 99th Annual Meeting of the American Ceramic Society, Cincinnati, USA (1997)

  61. A. S. Gandhi,* V. Jayaram and A.H. Chokshi, “Hot pressing studies on amorphous ZrO2-Al2O3 powders,” 52nd Annual Technical Meeting of Indian Institute of Metals, Bangalore, India (1998).

  62. T. Bhatia,* A. S. Gandhi, V. Jayaram and K. Chattopadhyay, “Rapid solidification and undercooling studies on ceramic oxides” 47th Annual Technical Meeting of the Indian Institute of Metals, Hyderabad, India (1993).

  63. A. S. Gandhi,* D.B. Ganveer, R. Shah and V. Ashok Kumar, “Bio-leaching of complex Pb-Zn-Cu ores," 45th Annual Technical Meeting of the Indian Institute of Metals, Ranchi, India (1991).

* Presenting author

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