Paper Title:
Effect of Ti Addition on Shear Strength of Brazing Diamond and Ag Based Filler Alloy
  Abstract

The shear strength samples of brazed single crystal diamond with the (72Ag–28Cu)–xTi (x=2, 4, 7wt.%) active filler metal were prepared, using vacuum brazing methods. Microstructure evolution of interfacial reaction product and shear strength of the brazed diamond and Ag based filler alloy were studied. The results show that there exits a layer of TiC on the surface diamond in different Ti additions, and the thickness of TiC layer increases with the increase of Ti addition. With the increase of Ti addition, the shear strength of the brazed joint decreases due to the increase of TiC layer thickness and amount of intermetallics. From the results, it was seen that mutual diffusion of C and Ti was effective on the morphology of the interface zone that affected the shear strength of the bonds. To achieve a reliable brazed joint, the Ti content must be controlled under 4wt.%.

  Info
Periodical
Edited by
Bo Zhao, Xipeng Xu, Guangqi Cai and Renke Kang
Pages
264-268
DOI
10.4028/www.scientific.net/KEM.416.264
Citation
Y. Chen, H. J. Xu, Y. C. Fu, H. H. Su, "Effect of Ti Addition on Shear Strength of Brazing Diamond and Ag Based Filler Alloy", Key Engineering Materials, Vol. 416, pp. 264-268, 2009
Online since
September 2009
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