Sintering of a transition alumina: Effects of phase transformation, powder characteristics and thermal cycle

Journal of the European Ceramic Society

Volumn 19, Issue 11, 1999, Pages 1967-1978

  Legros, C ^a   Carry, C ^b   Bowen, P ^c   Hofmann, H ^c  

^a UNIVERSITÉ PARIS SACLAY   (France)

^b CNRS   (France)

^c EPFL   (Switzerland)

Author keywords

Al2O3; Microstructure: final; Phase transformation; Rearrangement.; Sintering

Indexed keywords

CRYSTAL MICROSTRUCTURE; DENSIFICATION; DENSITY (SPECIFIC GRAVITY); GRAIN SIZE AND SHAPE; PHASE TRANSITIONS; POWDERS; SINTERING; THERMODYNAMIC PROPERTIES;

COMPACT DENSITY; HEATING RATE; PARTICLE REARRANGEMENT;

ALUMINA;

EID: 0032635021     PISSN: 09552219     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0955-2219(99)00016-3     Document Type: Article

References (30)

1. Levi C.G. Metastability and microstructure evolution in the synthesis of inorganics from precursors. Acta. Mater. 46:1998;787-800.
2. Dynis F.W., Halloran J.W. Alpha alumina formation in alum-derived gamma alumina. J. Am. Ceram. Soc. 65(9):1982;442-448.
3. Badkar P.A., Bailey J.E. The mechanism of simultaneous sintering and phase transformation in alumina. J. Mat. Sci. 11:1976;1794-1806.
4. Kumagai M., Messing G. Enhanced densification of boehmite sol-gels by. α -alumina seeding J. Am. Ceram. Soc. 67(11):1984;C230-C231.
5. Kumagai M., Messing G. Controlled transformation and sintering of a boehmite sol-gel by α-alumina seeding. J. Am. Ceram. Soc. 68(9):1985;500-505.
6. Messing G., Kumagai M. Low-temperature sintering of. α -alumina-seeded boehmite gels Am. Ceram. Soc. Bul. 73:1994;88-91.
7. Prouzet E., Fargeot D., Baumard J.F. Sintering of boehmite-derived transition alumina seeded with corundum. J. Mat. Sci. Let. 9:1990;779-781.
8. Matkin D.I., Munro W., Valentine T.M. The fabrication of α-alumina by reactive hot-pressing. J. Mater. Sci. 6:1971;974-980.
9. Ishitobi Y., Shimada M., Koizumi M. Reactive pressure sintering of alumina. Am. Ceram. Soc. Bul. 59:1980;1208-1211.
10. 3 J. Am. Ceram. Soc. 79:1996;2989-2992.
11. Nordahl C.S., Messing G. Transformation and densification of nanocrystalline. θ -alumina during sinter forging J. Am. Ceram. Soc. 79:1996;3149-3154.
12. Dauzat M., Pijolat M., Soustelle M. Influence de l'addition de cations sur les transformations successives. γ → δ → θ → α de l'alumine J. Chimie Physique. 85(9):1988;865-869.
13. Tsai D.S., Hsieh C.C. Controlled gelation and sintering of monolithic gels prepared from γ-alumina fume powder. J. Am. Ceram. Soc. 74(4):1991;830-836.
14. Xue L.A., Chen I.W. Influence of additives on the. γ -to - α transformation of alumina J. Mat. Sci. Lett. 11:1992;443-445.
15. 3 powder J. Am. Ceram. Soc. 79(8):1996;2207-2211.
16. Kumar K.N.P., Keiser K., Burggraaf A.J., Okubo T., Nagamoto H., Morooka S. Densification of nanostructured titania assisted by a phase transformation. Nature. 358:1992;48-51.
17. Legros C, Carry C, et al. Phase transformation and sintering of transition alumina powders: effects of zirconium, yttrium and titanium as doping elements. J. Eur. Ceram. Soc., in preparation.
18. Levin I., Brandon D. Metastable alumina polymorphs: crystal structures and transition sequences. J. Am. Ceram. Soc. 81(8):1998;1995-2012.
19. Kwon S., Messing G.L. Constrained densification in boehmite-alumina mixtures for the fabrication of porous alumina ceramics. J. Mater. Sci. 33:1998;913-921.
20. Echeverria L. Effect of rutile on densification of anatase. In Ceramic Transactions, Ceramic Powder Science III., Vol. 12, ed. G. L. Messing, S. Hirano and H. Hausner. American Ceramic Society, Westerville, OH, 1990, pp. 649-658.
21. Kim D.W., Kim T.G., Hong K.S. Origin of shrinkage anomaly in anatase. J. Am. Ceram. Soc. 81(6):1998;1692-1694.
22. 3-seeded boehmite-derived alumina. J. Am. Ceram. Soc. 76(1):1993;214-222.
23. Exner, H. E. Grundlagen von Sintervorgängen, ed. G. Petzow, Gebrüder Borntraeger Berlin, Stuttgart, 1978.
24. Chen P.L., Chen I.W. Sintering of fine oxide powders: I - microstructural evolution. J. Am. Ceram. Soc. 79(12):1996;3129-3141.
25. Chen P.L., Chen I.W. Sintering of fine oxide powders: II - sintering mechanisms. J. Am. Ceram. Soc. 80(3):1997;637-645.
26. Bowen, P., Charvin, O., Hofmann, H., Carry, C. and Herard, C., Processing of nanosized powders - a bimodal slip casting approach. In Ceramic Processing Science, eds. G. L. Messing, F. F. Lange and S. Hirano. Ceramic Transactions Volume 83, The Ceramic Society, 1998, pp. 211-218.
27. Chiang Y.-M., Silvermann L.A., French R.H., Cannon R.M. Thin glass film between ultrafine conductor particles in thick-film resistors. J. Am. Ceram. Soc. 77(5):1994;1143-1152.
28. Kumar K.P. Growth of rutile crystallites during the initial stage of anatase-to-rutile transformation in pure titania and in titania-alumina nanocomposites. Scripta Met. et Mater. 32(6)):1995;873-877.
29. Kondo M., Funakubo H., Shinozaki K., Mizutani N. Formability and sinterability of hydrothermally crystallized monodispersed titanium dioxide particles. J. Ceram. Soc. Jap. 103(6):1995;552-556.
30. Allen A.J., Krueger S., Skandan G., Long G.G., Hahn H., Kerch H.M., Parker J.C., Ali M.N. Microstructural evolution during the sintering of nanostructured ceramic oxides. Am. Ceram. Soc. 79(5):1996;1201-1212.