Microwave assisted chemical vapor infiltration

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5958446

Devlin, D J; Currier, R P; Barbero, R S; Espinoza, B F; Elliott, N

A microwave assisted process for production of continuous fiber reinforced ceramic matrix composites is described. A simple apparatus combining a chemical vapor infiltration reactor with a conventional 700 W multimode oven is described. Microwave induced inverted thermal gradients are exploited with the ultimate goal of reducing processing times on complex shapes. Thermal gradients in stacks of SiC (Nicalon) cloths have been measured using optical thermometry. Initial results on the inside out'' deposition of SiC via decomposition of methyltrichlorosilane in hydrogen are presented. Several key processing issues are identified and discussed. 5 refs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5958446
• Report Number(s): LA-UR-91-3850; CONF-911202-11; ON: DE92005019
• Resource Relation: Conference: Annual fall meeting of the Materials Research Society, Boston, MA (United States), 2-6 Dec 1991
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SILICON CARBIDES
CHEMICAL VAPOR DEPOSITION
CERAMICS
FIBERS
MATRIX MATERIALS
MICROWAVE HEATING
OPTICAL PYROMETERS
REINFORCED MATERIALS
TEMPERATURE GRADIENTS
TEMPERATURE MEASUREMENT
CARBIDES
CARBON COMPOUNDS
CHEMICAL COATING
DEPOSITION
HEATING
MATERIALS
MEASURING INSTRUMENTS
PYROMETERS
SILICON COMPOUNDS
SURFACE COATING
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication