Investigation of TiC/Si{sub 3}N{sub 4} and TiN-coated TiC/Si{sub 3}N{sub 4} composites

Conference · Tue Dec 31 00:00:00 EST 1996

OSTI ID:530689

Huang, Jow-Lay; Shew, Boy-Yuan ^[1]; Lii, Ding-Fwu ^[2]

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1. National Cheng-Kung Univ., Taiwan (China)
2. Chinese Naval Academy, Taiwan (China)

Silicon nitride containing various compositions of as received TiC and TiN-coated TiC were hot pressed at 1800{degrees}C for 1 h in a nitrogen atmosphere. In TiN-coated TiC/Si{sub 3}N{sub 4} composites, TiC reacted firstly with the TiN coating to form a titanium carbonitride interlayer at 1450{degrees}C, which essentially reduced further reactions between TiC and Si{sub 3}N{sub 4} and enhanced densification. TiN-coated TiC/Si{sub 3}N{sub 4} composites exhibited better densification, flexural strength and fracture toughness than those of as received TiC/Si{sub 3}N{sub 4}.

• OSTI ID: 530689
• Report Number(s): CONF-9604124-; TRN: 97:003389-0025
• Resource Relation: Conference: 98. annual meeting of the American Ceramic Society, Indianapolis, IN (United States), 14-17 Apr 1996; Other Information: PBD: 1996; Related Information: Is Part Of Ceramic transactions: Advances in ceramic-matrix composites III. Volume 74; Bansal, N.P.; Singh, J.P. [eds.]; PB: 667 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SILICON NITRIDES
HOT PRESSING
FRACTURE PROPERTIES
TITANIUM CARBIDES
COMPOSITE MATERIALS
TITANIUM NITRIDES
COATINGS
FLEXURAL STRENGTH