초록 ▼

A method whereby silicon carbide-bonded SiC fiber composites are prepared from carbon-bonded C fiber composites is disclosed. Carbon-bonded C fiber composite material is treated with gaseous silicon monoxide generated from the reaction of a mixture of colloidal silica and carbon black at an elevated

A method whereby silicon carbide-bonded SiC fiber composites are prepared from carbon-bonded C fiber composites is disclosed. Carbon-bonded C fiber composite material is treated with gaseous silicon monoxide generated from the reaction of a mixture of colloidal silica and carbon black at an elevated temperature in an argon atmosphere. The carbon in the carbon bond and fiber is thus chemically converted to SiC resulting in a silicon carbide-bonded SiC fiber composite that can be used for fabricating dense, high-strength high-toughness SiC composites or as thermal insulating materials in oxidizing environments.

대표청구항 ▼

A method of forming a thermal insulating material consisting essentially of SiC fibers, consisting essentially of: forming a precursor material wherein carbon fibers are bonded together by a carbon binder; and contacting gaseous SiO with said precursor material to thereby convert the carbon fibers a

A method of forming a thermal insulating material consisting essentially of SiC fibers, consisting essentially of: forming a precursor material wherein carbon fibers are bonded together by a carbon binder; and contacting gaseous SiO with said precursor material to thereby convert the carbon fibers and carbon binder therein to SiC.