Ceramic fiber coatings development and demonstration. Final technical report, 1 July 1989-31 May 1993

Technical Report · Fri May 28 04:00:00 EDT 1993

OSTI ID:5939019

Streckert, H; Hazlebeck, D; Montgomery, F; Norton, K; Schneir, I

The objective of this program was to develop fiber coating techniques by gas phase and liquid phase processes for interface control in ceramic matrix and metal matrix composites. Thermochemical evaluations of fiber/coating/matrix systems were performed theoretically and experimentally. Liquid phase processes were developed mainly for oxide coatings. Gas phase processes were developed for-carbide, nitride and boride coatings. Coatings were produced on continuous fiber tows and woven fabric. A small scale continuous fabric coater was designed and constructed. Coated fiber tows were infiltrated with silicon nitride matrix by chemical vapor deposition in order to study fiber matrix interactions. Composite coupons were made from Nicalon cloth and infiltrated with silicon nitride. Samples coated with high temperature BN showed flexural strengths up to 350 MPa.... Ceramic Fiber Coating, Chemical Vapor Deposition, Sol-Gel Ceramic Matrix Composites, Metal Matrix Composites.

• Research Organization: General Atomics, San Diego, CA (United States)
• OSTI ID: 5939019
• Report Number(s): AD-A-267286/3/XAB; GA-C--21284; CNN: F49620-89-C-0078
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALLOYS
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COATINGS
DEMONSTRATION PROGRAMS
DEPOSITION
FIBERS
INTERMETALLIC COMPOUNDS
MATERIALS
MATRIX MATERIALS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SOL-GEL PROCESS
SURFACE COATING