Compositions: ceramic – Ceramic compositions – Pore-forming
Patent
1982-09-29
1983-10-04
Poer, James
Compositions: ceramic
Ceramic compositions
Pore-forming
501153, 501154, 4283044, C04B 3300
Patent
active
RE0314056
ABSTRACT:
Foamable particulate cement is capable of forming sintered cordierite foamed ceramic masses. It consists essentially, by weight, of 1-40% cordierite grog, 99-60% ceramic base material and foaming agent, such as SiC. The ceramic base material is raw ceramic material that has an analytical molar composition consisting essentially of about 1.7-2.4 MO.1.2-2.4 Al.sub.2 O.sub.3.4.5-5.4 SiO.sub.2 wherein MO comprises about 0-55 mole % MgO and at least 45 mole % MnO. The grog is ceramic material that has been previously fired and comminuted, and that has an analytical molar composition consisting essentially of about 1.7-2.4 RO.1.9-2.4 Al.sub.2 O.sub.3.4.5-5.2 SiO.sub.2 wherein RO comprises MnO in an amount of 0 mole % up to a mole % that is about 20 mole % lower than the mole % of MO that is MnO and the balance is substantially MgO.
REFERENCES:
patent: 3272686 (1966-09-01), Smith et al.
patent: 3634111 (1972-01-01), Foster et al.
patent: 3885977 (1975-05-01), Lachman et al.
patent: 3929494 (1975-12-01), Veres
patent: 4191583 (1980-03-01), Armistead et al.
Corning Glass Works
Poer James
Wardell R. N.
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