Fabrication of Ceramic Matrix Composite Blisks from Near-Net Shape Preforms

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$119,976.00
Award Year:
2003
Program:
SBIR
Phase:
Phase I
Contract:
DAAH10-03-C-003
Agency Tracking Number:
A022-2807
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
ULTRAMET
12173 Montague Street, Pacoima, CA, 91331
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Jason Babcock
Research Scientist
(818) 899-0236
jason.babcock@ultramet.com
Business Contact:
Craig Ward
Engineering Administrativ
(818) 899-0236
craig.ward@ultramet.com
Research Institution:
n/a
Abstract
No timely and cost-effective methods now exist for the fabrication of continuous fiber-reinforced ceramic matrix composites (CMCs) of complex geometries. Application of such CMCs can potentially enhance the efficiency and performance, reduce the weight,improve the durability, and lower the cost of aerospace propulsion systems, particularly those used in high temperature, high-stress environments. Achieving these benefits requires development of fiber preform production and matrix infiltration techniquescapable of efficiently producing net or near-net shape parts to eliminate the need for costly and time-consuming machining in the final production step. The quality of such parts will also depend on implementation of improved fiber/matrix interfaces andinterface deposition techniques. For many projected applications, carbon fibers are of particular interest as CMC reinforcements because they are relatively inexpensive, have higher strength and stiffness and lower density than oxide or non-oxide ceramicfibers, and retain their mechanical properties at very high temperatures. The main drawback of carbon fibers, however, is their low oxidation resistance, which has prevented their extensive use in high temperature oxidizing environments. Oxide interfacescan potentially impart sufficient protection, as well as provide other essential interface functions. In previous work, Ultramet demonstrated a unique and innovative process for depositing oxide interfaces, specifically ultraviolet-enhanced chemical vapordeposition (UVCVD). Ultramet has also successfully achieved rapid infiltration of carbide matrices within thin (<0.125

* information listed above is at the time of submission.

Agency Micro-sites

US Flag An Official Website of the United States Government