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Properties of Cu-TiB2 Composites Fabricated by In-Situ Liquid Melt Mixing Process

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Abstract:

A Cu-TiB2 composite was successfully fabricated by in-situ liquid mixing process, and its microstructure, mechanical properties as well as electrical conductivity were evaluated. For Cu-2vol.%TiB2 composite, the hardness was as high as 5GPa and the Young’s modulus was 130GPa. And hardness and Young’s modulus of Cu-6vol.%TiB2 composite was 5.6Gpa and 138GPa, respectively. With the increase of the TiB2 content, hardness and Young’s modulus of Cu-10vol.%TiB2 composite were 20 and 12%, respectively, which was higher than that of Cu-2vol.%TiB2 composite. Young’s modulus of the Cu-TiB2 composite in this paper was in good agreement with the prediction by Hashin-Shtrikman (H-S) model. Furthermore, the electrical conductivity of the Cu-TiB2 composite showed its maximum value of about 78%IACS and decreased with the increase of the TiB2.

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Periodical:

Advanced Materials Research (Volumes 15-17)

Pages:

215-219

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.15-17.215

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Online since:

February 2006

Authors:

J.H Yun, J.H. Kim, J.S. Park, Young Do Park, Yong Ho Park, Kyung Mok Cho, Ik Min Park

Keywords:

Cu Based MMCs, In Situ Liquid Melt Mixing Process, TiB2, Young's Modulus

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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