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Abstract Summary
Conference:
105th Annual Meeting & Exposition
Instructions
and
Links
Symposium:
20. Ceramic Matrix Composites
Session:
Geopolymer Composites -
1:00:00 PM - 5:00:00 PM 4/28/2003
Abs. Title:
Recent Developments in Geopolymer Composites
Abstract #:
7452
Type:
Invited
Submitted:
12/1/2002 9:44:50 PM
Status:
Accepted
Scheduled?
Yes
Abstract:
Two classes of composite made using either ceramic matrix with high temperature fibers or carbon/ carbon have been used for various applications that require high temperature resistance, over three decades. However, thier use has been limited to special applicaitons because of the high costs associated with fabrication. Typically, the composites are cured at more than 1000
o
C, and in most instances the heating was also to be carried out in controlled environments. in addition, because of the high processing temperature, only certain type of expensive fibers can be used with the ceramic matrices. A recently developed inorganic matrix, called polysialate can be cured at temperatures less than 150
o
C, making it possible to use carbon and glass fibers. Composites made using carbon, glass and combinations of carbon and glass fibers have been tested in bending and tension. This paper presents the comparison of processing requirements and mechanical properties of carbon/carbon composites, ceramic matrix composites made with silican carbide, silicon nitride and alumina fibers and carbon/polysialate composties. The results indicate that carbon/polysialate composite has mechanical properties comparable to both carbon/carbon and ceramic matrix composites at room and high temperatures. Since the polysialate composites are much less expensive, the authors believe that it has excellent potential for more applicaitons in aerospace, automobile and naval structures.
Abstract Author(s)
1
Primary and Presenting
P. Balaguru -
1011766
Organization
Rutgers University
Phone #
732 445 3537
Fax #
Professional Title
Professor
Street Address
and NSF Program Director for Intrastructure Materials and Structural Mechanics
City
Piscataway
State
NJ
Country
United States
Postal Code
08854
1
Co-Author
C. Papakonstantinou -
1011816
Organization
Rutgers University
Phone #
Fax #
Professional Title
Graduate student
Street Address
City
Piscataway
State
NJ
Country
United States
Postal Code
08854
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