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

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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)

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer and C. Ravindran

Pages:

215-219

Citation:

J.H. Yun et al., "Properties of Cu-TiB2 Composites Fabricated by In-Situ Liquid Melt Mixing Process", Advanced Materials Research, Vols. 15-17, pp. 215-219, 2007

Online since:

February 2006

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$38.00

[1] M. A. Morris and D. G. Morris: Mater. Sci. Eng. A111 (1989) p.115.

[2] A. V. Nadkarni, E. Klar and W. M. Shafer: Metals Eng. Q. August (1976) p.10.

[3] G. V. Samsonov and B. A. Kovenskaya: in Boron and Refractory Borides (Springer-Verlag, New York 1977).

[4] Z. Y. Huang: Chin. J. Nonferrous Met. 3 (1994) p.110.

[5] A. R. C. Westwood : Metall. Trans. 19A (1988) p.749.

[6] T. Maruyama and S. Onose: J. Nuclear Sci. Tech. 36 (1990) p.380.

[7] J. Y. Park, S. J. Oh, C. H. Jung, G. W. Hong and I. H. Kuk: J. Mater. Sci. Letters 18 (1999) p.67.

[8] Y. V. Baikalova and O. I. Lomovsky: J. Alloys and Compounds 297 (2000) p.87.

[9] L. M. Brown and R. K. Ham: Strengthening Methods in Crystals (Elsevier, Amsterdam 1971).

[10] Z. Hashin and S. Shtrikman: J. Appl. Phys. 33 (1962) p.3125.