Title

Enhanced Densification and Mechanical Properties of ZrB₂-SiC Processed by a Preceramic Polymer Coating Route

Abstract

Dense ZrB2-SiC ultra-high temperature ceramics were prepared by a novel pressureless sintering process. the relative density of sintered ceramics increased from 62.5% for ZrB2 to 96.7% by coating the starting ZrB2 powder with polycarbosilane, which was converted to C and SiC by pyrolysis. the mechanism of enhanced densification and the mechanical properties of the sintered ZrB2-SiC ceramics were investigated.

Department(s)

Materials Science and Engineering

Sponsor(s)

National Science Foundation (U.S.)

Keywords and Phrases

Mechanical Properties; Preceramic Polymer; Zirconium Diboride (ZrB2)

Library of Congress Subject Headings

Silicon carbide
Sintering

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2008 Elsevier, All rights reserved.


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