Synthesis and Properties of AlN-SiC-TiB2 Ceramics by SHS-HIP

Abstract:

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AlN-SiC-TiB2 ceramics were synthesized by self-propagating high temperature synthesis (SHS) and hot isostatic pressing (HIP) methods. The powder mixtures of Al, 6H-SiC and TiB2 were shaped by isostatic cool pressing method, and then combustion reaction was carried at the pressure of 100-200 MPa N2 by an ignitor. The solid solution of AlN and 2H-SiC in AlN-SiC-TiB2 ceramics was formed. The phase composition and microstructure were investigated by XRD and SEM. The mechanical properties of composite were measured as functions of composition. The maximum value of flexural strength and fracture toughness of composites were 430 MPa and 3.9 MPa⋅m1/2 respectively.

Info:

Periodical:

Key Engineering Materials (Volumes 353-358)

Edited by:

Yu Zhou, Shan-Tung Tu and Xishan Xie

Pages:

1517-1520

DOI:

10.4028/www.scientific.net/KEM.353-358.1517

Citation:

L. J. Zhou et al., "Synthesis and Properties of AlN-SiC-TiB2 Ceramics by SHS-HIP ", Key Engineering Materials, Vols. 353-358, pp. 1517-1520, 2007

Online since:

September 2007

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Price:

$35.00

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