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Boron Carbide-Based Ceramics Via Polymer Route Synthesis

Published online by Cambridge University Press:  25 February 2011

Haixing Zheng ,
Kevin Thorne ,
J.D. Mackenzie ,
Xiaoguang Yang  and
M.F. Hawthome
Haixing Zheng
Affiliation:
Department of Materials Science and Engineering, University of California at Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90024
Kevin Thorne
Affiliation:
Department of Materials Science and Engineering, University of California at Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90024
J.D. Mackenzie
Affiliation:
Department of Materials Science and Engineering, University of California at Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90024
Xiaoguang Yang
Affiliation:
Department of Chemistry and Biochemistry, University of California at Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90024
M.F. Hawthome
Affiliation:
Department of Chemistry and Biochemistry, University of California at Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90024
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Abstract

Boron carbide is a ceramic material with excellent high temperature physical properties. As compared to conventional techniques, the preparation of boron carbide from polymeric precursors is attractive as this technique offers a number of unique advantages. In this paper, the screening of polymeric precursors to boron carbide will be discussed. Two promising boron carbide, carborane containing polymeric precursors have resulted in 60-70 wt.% ceramic yields. The chemistry of polymer synthesis and the transformations from the polymer to amorphous and crystalline boron carbide were investigated with infrared spectroscopy, NMR spectroscopy, thermal analysis, and x ray diffraction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 249: Symposium Q – Synthesis and Processing of Ceramics: Scientific Issues , 1991 , 15
Copyright
Copyright © Materials Research Society 1992

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References

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