首页|The effect of Ti/Si ratio for introducing diamond into Cu melts based on Ti-Si-diamond reaction
The effect of Ti/Si ratio for introducing diamond into Cu melts based on Ti-Si-diamond reaction
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NSTL
Elsevier
? 2022 Elsevier LtdIn this study, diamond-reinforced Cu matrix composites were successfully prepared by introducing diamond into Cu melts based on Ti-diamond (D)-Si reaction. When Ti[sbnd]D mixture is added into Cu melts, TiC will be immediately synthesized on the surface of the diamonds and tend to connect with each other to form a network structure, which will lead to the formation of the Cu-Ti-D refractory block. When Si is added into Ti[sbnd]D, Ti[sbnd]Si reaction will precede Ti[sbnd]D reaction and form Ti5Si3. In this case, the formed TiC will be prevented from forming a continuous network. As a result, the diamond with the TiC shell will be effectively dispersed into Cu melts. It is found that the effect of Ti and Si on the microstructures of the prepared Cu-Ti-Si-D composites is not independent but related to each other, and the optimal mass ratio of Ti-Si-D is in the range of 2:(0.83–1.11):(1–1.25).
CastingCu matrix compositesDiamondMicrostructures
Liu Q.、Wang T.、Wang W.、Liu H.、Zhou J.、Ding H.、Wang H.
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School of Energy Power and Mechanical Engineering North China Electric Power University
College of Mechanical and Electric Engineering Hebei Agricultural University
NSTL
Elsevier
