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Indexed by:期刊论文

Date of Publication:2008-01-01

Journal:COMBUSTION EXPLOSION AND SHOCK WAVES

Included Journals:SCIE、EI

Volume:44

Issue:1

Page Number:119-121

ISSN No.:0010-5082

Key Words:explosive compaction; hydrogen sintering; copper alloy; nano-alumina

Abstract:This paper is intended to describe manufacturing of a nano-alumina particle-reinforced copper alloy with better strength and high-temperature properties than those of pure copper. A new preparation technique is proposed, which includes three processes: mechanical alloying, hydrogen sintering, and explosive compaction. Cu/alpha-Al2O3 bulk samples with a density of 97.86% of the theoretical density and hardness of H-V = 112 are obtained. The microstructure study indicates that alpha-Al2O3 particles are dispersed in the copper matrix and still keep the nanometer scale.