Comparison of Different Diamond Coatings in Co-Based Bond Matrix for Wire Saws


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An investigation is reported of the effects of three different coatings onto diamonds in the composites for the beads of wire saws. The matrix of the composites contained 80% (w/w) cobalt. Ti, W, and W-Co were coated onto diamond surfaces respectively and then incorporated into the matrix. The mixed powders were hot-pressed to form the specimens for bending tests. Coupled with the results of bending tests and the strength of coated diamonds, the coatings of W were found to be best among the three coatings. Further experiments indicated that the thickness of W-coatings onto the diamonds should be controlled around 10(m in order to obtain an excellent retention of diamonds.



Materials Science Forum (Volumes 532-533)

Edited by:

Chengyu Jiang, Geng Liu, Dinghua Zhang and Xipeng Xu




H. Guo et al., "Comparison of Different Diamond Coatings in Co-Based Bond Matrix for Wire Saws", Materials Science Forum, Vols. 532-533, pp. 385-388, 2006

Online since:

December 2006




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