Process for manufacturing SiC-based ceramic precursors

Details Process for manufacturing SiC-based ceramic precursors Process for manufacturing SiC-based ceramic precursors

1994-01-19

1995-07-25

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264236, B29C 3504

Patent

active

054359520

ABSTRACT:
A process for manufacturing SiC-based ceramic precursors by curing a polycarbosilane shaped body while it is in contact with vapor of at least one hydrocarbon selected from the group consisting of halogenated hydrocarbons and unsaturated hydrocarbons of ethylene series and acetylene series. This process can cure polycarbosilane shaped bodies without introducing oxygen thereinto and requires no special apparatuses. The obtained precursor is suited for synthesizing SiC-based ceramics efficiently without deteriorating characteristics thereof, particularly excellent in high-temperature strength.

REFERENCES:
patent: 4847027 (1989-07-01), Lu
Chemical Abstracts, vol. 114, No. 16, 22 Apr. 1991, U.S., Abstract No. 145d, Shimada et al, "Manufacture of Silicon . . . ".
"Polymer Preprints, Japan", vol. 38, No. 12, (1989)/& Eng Trans. Seguchi et al; 3X095 Curing Treatment by Irradiation.

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