IN-SITU COMPOSITES IN THE ALUMINUM NITRIDE-ALUMINA SYSTEM

Award Information
Agency:
Department of Defense
Branch:
Missile Defense Agency
Amount:
$65,000.00
Award Year:
1994
Program:
SBIR
Phase:
Phase I
Contract:
N/A
Agency Tracking Number:
25535
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Waterjet Technology, Inc.
21414 68th Avenue South, Kent, WA, 98032
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 Ender Savrun, Phd
 (206) 872-9500
Business Contact
Phone: () -
Research Institution
N/A
Abstract
Aluminum nitride (AlN), an electronic substrate material, is a promising ceramic for high-temperature structural applications. The self-reinforced AlN to be developed in this project will have room-temperature properties of 1000 MPa flexural strength and 7 to 8 MPa.m 1/2 fracture toughness. The composite will be free of glassy grain boundary phases. It will, therefore, have superior high-temperature mechanical properties, in-particular, creep resistance. Starting-powder characteristics, sintering-aid type and amount, sintering parameters including isothermal holding time and temperature, and furnace atmosphere will be systematically evaluated too achieve self-reinforcing microstructures. Scanning electron microscopy and light microscopy will be used to evaluate microstructural evolution.

* information listed above is at the time of submission.

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