Formation of mullite phase in diphasic gels consisting of TEOS and boehmite with and without dehydroxylation

Journal of the European Ceramic Society

Volumn 18, Issue 12, 1998, Pages 1765-1769

  Padmaja, P ^a   Anilkumar, G M ^a   Warrier, K G K ^a  

^a REGIONAL RESEARCH LABORATORY CSIR   (India)

Author keywords

[No Author keywords available]

Indexed keywords

ALUMINA; GELS; HIGH TEMPERATURE EFFECTS; OXIDES;

DEHYDROXYLATION; MULLITE;

ALUMINUM COMPOUNDS;

EID: 0032208560     PISSN: 09552219     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0955-2219(98)00087-9     Document Type: Article

References (28)

1. 1. Aksay, I. A., Dabbs, D. M. and Sarikaya, M., Mullite for structural, electronic and optical applications. J. Am. Ceram. Soc., 1991, 74, 2343-2358.
2. 2. J. Am. Ceram. Soc., 1984, 67, 468-471.
3. 3. Roy, R., Komarneni, S. and Roy, D, M., Muitiphasic ceramic composites made by sol-gel technique. In Better Ceramics Through Chemistry, Materials Research Society Symposium Proceedings, Vol. 32, ed. C. J. Brinker, D. E. Clark and D. R. Ulrich. Elsevier, New York, 1984, pp. 347-359.
4. 3 xerogels and the formation process of mullite. J. Am. Ceram Soc., 1986, 69, 652-656.
5. 5. Hyatt, M. J. and Bansal, N. P., Phase transformation in xerogels of mullite composition. J. Mater. Sci., 1990, 25, 2815-2821.
6. 6. Li, D. X. and Thomson, W. J., Kinetic mechanism for the mullite formation from sol-gel precursor. J. Mater. Res., 1990, 5, 1963-1969.
7. 7. Yoldas, B. E., Effect of ultrastructure on crystallisation of mullite. J. Mater. Sci., 1992, 27, 6667-6672.
8. 8. Huling, J. C. and Messing. G. L., Hybrid gels for homoepitactic nucleation of mullite. J. Am. Ceram. Soc., 1989, 72, 1725-1729.
9. 9. Huling, J. C. and Messing, G. L., Hybrid gels designed for mullite nucleation and crystallisation control. In Better Ceramics Through Chemistry IV, Materials Research Society Symposium Proceedings, Vol. 180, ed. B. J. J. Zelinski, C. J. Brinker, D. E. Clark and D. R. Ulrich. Materials Research Society, Pittsburg, PA, 1990 pp. 515-526.
10. 10. Huling, J. C. and Messing, G. L., Epitactic nucleation of spinel in aluminium silicate gels and effect on mullite crystallisation. J. Am. Ceram. Soc., 1991, 74, 2374-81.
11. 11. Gerardin, C., Sundresan, S., Benzinger, J. and Navrotsky, A., Structural investigaton and energetics of mullite formation sol-gel precursor. Chem. Mater., 1994, 6, 160-170.
12. 12. Li, D. X. and Thomson, W. J., Tetragonal to orthorhombic transformation during mullite formation. J. Mater. Res., 1991, 6, 819-824.
13. 13. Wei, W, C. and Halloran, J. W., Phase transformation of diphasic aluminosilicate gels J. Am. Ceram. Soc., 1988, 71, 166.
14. 14. Wei, W. C. and Halloran, J. W., Transformation kinetics of diphasic alumininosilicate gels. J. Am. Ceram. Soc., 1988, 71, 581-587.
15. 15. Hsi, H.-S., Lu, H.-Y. and Yen, F.-S., Thermal behaviour of alumina-silicaxerogels during calcination. J. Am. Ceram. Soc., 1989, 72, 2208-2210.
16. 16. Rajendran, S., Rossell, H. J. and Sanders, J. V., Crystallization of a coprecipitated mullite precursor during heat treatment. J. Mater. Sci., 1990, 25, 4462-4471.
17. 17. Klaussen, G., Fischman, G. S. and Laughner, J. L., Microstructural evolution of sol-gel mullite. Ceram. Eng. Sci. Proc., 1990, 11, 1087-1093.
18. 3-A TEM study. J. Euro. Ceram. Soc., 1994, 14, 511-515.
19. 19. Colomban, Ph., Structure of oxide gels and glasses by infrared and Raman Scattering. J. Mater. Sci., 1989, 24, 3011-3020.
20. 20. Colomban, Ph. and Vendauge, V., Sintering of alumina and mullite prepared by slow hydrolysis of alkoxides: the role of the protonic species and pore topology. J. Non-Cryst. Solids, 1992, 147(148), 245-250.
21. 2. J. Mater. Sci., 1991, 26, 2150-2156.
22. 22. de Keyser, W. L., Science of Ceramics Vol. 2, ed. G. H. Stewart. Academic Press New York, 1965 pp. 243-257.
23. 3. J. Am. Ceram. Soc., 1972, 58, 525-531.
24. 3. J. Am. Ceram. Soc., 1975, 58, 507-512.
25. 25. Wang, K. and Sacks, M. D., Mullite formation by endothermic reaction of α-Alumina/silica microcomposite particles. J. Am. Ceram. Soc., 1996, 79, 12-16.
26. 26. McArdle, J. L. and Messing, G. L., Seeding with γ-alumina for transformation and microstructure control in boehmite derived α-alumina. J. Am. Ceram. Soc., 1986, 69, C-98-C-101.
27. 27. Anilkumar, G. M., Hareesh, U. S., Damodaran, A. D. and Warrier, K. G. K., Effect of seeds on the transformation of sol-gel mullite. Ceram. Int., 1997, 23, 537-543.
28. 28. Chakravorty, A. and Ghosh, D. K., 980°C phase development in some mullite gels. J. Am. Ceram. Soc., 1988, 71, 978-987.