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论文类型：期刊论文

发表时间：2006-07-01

发表刊物：JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY

收录刊物：SCIE、EI、ISTIC、Scopus

卷号：22

期号：4

页面范围：514-518

ISSN号：1005-0302

关键字：pulse plating; codeposition; composite coatings

摘要：Copper-zirconium diboride (ZrB2) composite coatings were fabricated using pulse plating technique to acquire a new type of EDM (electro-discharge machining) electrode material. The effects of pulse parameters, i.e., the average current density, the frequency and the duty cycle, on the incorporation of ZrB2 particles in the copper matrix were investigated. The amount of codeposited ZrB2 particles had a maximum at average current density of 3 A/dm(2) and increased with decreasing duty cycle as well as current frequency of the pulse current used for deposition. The hardness of the coatings increased with increasing ZrB2 percentage, whereas the incorporation of ZrB2 particles had little effect on the resistivity of the composites.