Inventors:
Colby Foss - Kapaa HI, US
Clifford Tanaka - Lihue HI, US
Nathan Wood - Kapaa HI, US
William Fischer - Kapaa HI, US
David Kane - Lihue HI, US
Bruce MacDonald - Arlington VA, US
Tesse Tanigawa - Kapaa HI, US
David Christenson - Lihue HI, US
International Classification:
C23C 16/00
Abstract:
A method for forming within a reactor having a work zone of at least one cubic meter, composite articles particularly ceramic composites articles, for high temperature applications. The invention provides composite articles formed from the deposition on hot surfaces of a chemical vapor having entrained solid particles. A composite material is produced comprising a chemical vapor deposition matrix with the solid particles dispersed within the matrix. Applicants have designed reactors with work zones much larger than prior art CVC reactors greatly improving production efficiency. In a preferred embodiment the work zone volume is about 3.37 cubic meters. By carefully controlling the reactor gas flows and pressure within a large work zone, as well as the number of solid particles per flow rate of reactor gas, Applicants are able to efficiently produce composites with substantially improved quality as compared with CVD produced articles and as compared with articles produced with prior art CVC processes.