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US 6,787,189 B2Granted
Preparation of C/Si/O composite material
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHidetaka Konno, Mikio Aramata, Hirofumi Fukuoka
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Abstract
A C/Si/O composite material having improved oxidation resistance is prepared by impregnating graphite with a crosslinkable silane or siloxane, causing the silane or siloxane to crosslink within the graphite, and heating at 300-1,200° C. in a non-oxidizing gas. The C/Si/O composite material can be efficiently prepared through simple steps, on an industrial scale and at a low cost and will find use as a high-temperature structural material by virtue of oxidation resistance.
Claims5
A method for preparing a C/Si/O composite material, comprising the steps of:
- impregnating graphite with an addition reaction curing organopolysiloxane composition,
- causing the organopolysiloxane composition to crosslink within the graphite, and
- heating the graphite at a temperature of 300 to 1,200° C. in a non-oxidizing gas for reaction to take place.
Dependencies are inferred from the claim text.