Compositions: ceramic – Ceramic compositions – Clay containing
Patent
1995-11-29
1997-06-24
Group, Karl
Compositions: ceramic
Ceramic compositions
Clay containing
501127, 501143, 501144, C04B 3326
Patent
active
056417209
ABSTRACT:
A corundum porcelain composition containing from 60 to 94% by weight of a component A and from 6 to 40% by weight of a component B, wherein component A contains from 0 to 70% by weight of alumina, from 20 to 70% by weight of clay material, from 10 to 50% by weight of glass formers and from 0 to 30% by weight of quartz, and component B comprises comminuted broken porcelain, the chemical composition of the mixture of the components A and B comprises from 20 to 75% by weight of SiO.sub.2, from 15 to 80% by weight of Al.sub.2 O.sub.3 and from 2 to 10% by weight of flux selected from the group consisting of K.sub.2 O, Na.sub.2 O, FeO, MgO, CaO, Li.sub.2 O; BaO, SrO, ZnO and fluoride, and the comminuted broken porcelain has a mean particle size between 25 and 800 .mu.m, useful, for example, in sintered bodies, such as insulators.
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Group Karl
Hoechst Ceramtec Aktiengesellschaft
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