Shock-Wave Synthesis of Titanium Diboride in Copper Matrix and Compaction of TiB2-Cu Nanocomposites

Abstract:

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TiB2-Cu composites in a nanostructured state are candidates for high-strength conductive and erosion-resistant materials. In this work, we studied formation of nanostructured TiB2-Cu composites under shock wave conditions. We investigated the influence of preliminary mechanical activation (MA) of Ti-B-Cu powder mixtures on the peculiarities of the reaction between Ti and B under shock wave. In the MA-ed mixture the reaction proceeded completely while in the nonactivated mixture the reagents remained along with the product – titanium diboride. The size of titanium diboride particles in the central part of the compact was 100-300 nm. This research shows that shock wave synthesis in mechanically activated powder mixtures with simultaneous compaction of the composite is a promising way to materials with submicron and nanostructures.

Info:

Periodical:

Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim

Pages:

921-924

DOI:

10.4028/www.scientific.net/MSF.534-536.921

Citation:

O.I. Lomovsky et al., "Shock-Wave Synthesis of Titanium Diboride in Copper Matrix and Compaction of TiB2-Cu Nanocomposites", Materials Science Forum, Vols. 534-536, pp. 921-924, 2007

Online since:

January 2007

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$35.00

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