Compositions: ceramic – Ceramic compositions – Refractory
Patent
1990-06-27
1991-07-23
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Refractory
501153, 423629, 2523157, C04B 3510
Patent
active
050343602
ABSTRACT:
A process for the production of a ceramic polycrystalline abrasive by the sol/gel method is characterized in that an intermediate containing aluminium hydroxide is mixed, dried, calcined and sintered with a further intermediate having different degradation properties. The further intermediate is expediently formed from a calcined aluminium hydroxide.
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Roy, Suwa, Komarneni: Nucleation and Epitaxial Growth in Diphasic (Crystane+Amorphes) Gels-Science of Issued in Science of Ceramic Chemical Processing, New York 1986, pp. 259-271.
McArdle et al, "Seeding with .gamma.Alumina for Transformation and Microstructure Control in Boehmite-Derived .alpha.-Alumina", J. Am. Ceram Soc., 69(5), 98-101 (1986).
Kumagai et al, "Enhanced Densification of Boehmite Sol-Gels by .alpha.-Alumina Seeding", Communications of Am. Ceramic Soc., 230-231 (1984).
Bartels Gunter
Becker Gunter
Wagner Eckhard
Dixon Jr. William R.
Hollenbeck Sue
Norddeutsche Schleifmittel-Industrie Christiansen & Co. (GmbH &
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