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Novel CVD/MOCVD Fiber Coatings for Toughened High Temperature Composites

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
25955
Program Year/Program:
1995 / SBIR
Agency Tracking Number:
25955
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Advanced Technologies/Laboratories Intl
Advanced Technologies/Lab Intl 20010 Century Blvd, Ste 500 Germantown, MD 20874 0111
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Woman-Owned: Yes
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1995
Title: Novel CVD/MOCVD Fiber Coatings for Toughened High Temperature Composites
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $750,000.00
 

Abstract:

Structural composites have many applications to 2500 Degrees F and beyond, in oxidizing environments. Oxide fibers within intermetallic or oxide matrices are the top candidate systems for satisfying these conditions. Suitable fiber/matrix interface coatings are critical, but their development has suffered from extremely high per-pound costs and marginal thermochemical stability. CaF2 and LaPO4 have recently been suggested as coatings with excellent potential for both intermetallic and oxide matrices, although they have yet to be demonstrated on fibers or in composites. ATM, Inc. is ideally suited to exploit new, commercialized developments in chemical vapor deposition (CVD) to address both processing and cost issues. In Phase I, ATM will demonstrate established reagent chemistry, liquid source delivery, atmospheric pressure CVD, and continuous (multifilament) fiber coating technologies in preparing high quality CaF2 and LaPO4 coatings on aluminum oxide fibers. Coated fibers will be processed into TiAl matrix composites by the 3M metal matrix group and provided to Air Force researchers for evaluation in ceramic matrix composites. Microanalytical characterization by ATM and 3M will focus on coating uniformity, stoichiometry, morphology, crystallinity and reactivity, and failure mechanisms. Phase II will address process optimization for a selected coating, in conjunction with processing by a composite manufacturer. OPTION: None submitted.

Principal Investigator:

Edward A. Sturm
2037941100

Business Contact:

Small Business Information at Submission:

Advanced Technology Materials
7 Commerce Drive Danbury, CT 06810

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No