Combustion Synthesis and Two-Time Densification of TiB2-Cu Composites

Abstract:

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TiB2 -Cu cermet with the relative density of 92% was produced from titanium, boron and copper powders by combustion synthesis and subsequently pseudo hot isostatic pressing. To improve its mechanical and thermal physical properties, the two-time hot pressing sintering test was carried out at 1050°, 1090° and 1150°C respectively. The deformation behavior and variation of micro- structure and mechanical properties were investigated in detail. The results showed that the relative density and the flexural strength increase remarkably after two-time hot pressing. The relative density reaches 605.5MPa and the flexural strength reaches 96% when the two-time pressing temperature is at 1090°C, and the values increase 12% and 6% compared to that before two-time pressing.

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Edited by:

Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li

Pages:

1433-1436

DOI:

10.4028/www.scientific.net/KEM.280-283.1433

Citation:

C. Q. Hong et al., "Combustion Synthesis and Two-Time Densification of TiB2-Cu Composites", Key Engineering Materials, Vols. 280-283, pp. 1433-1436, 2005

Online since:

February 2007

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Price:

$35.00

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