Method for preparing ZrB2-Cu composite powder
A composite powder, zrb2-cu technology, applied in the field of ceramic/metal composite materials preparation, can solve the problems of difficult uniform distribution of two phases, low performance of composite materials, weak combination of two phase interfaces, etc., to achieve crystallinity without impurity phases, coating Dense, good crystallinity effect
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[0011] Specific embodiment: the preparation process of the present invention comprises ZrB 2 Two steps of pretreatment and electroless copper plating;
[0012] The ZrB 2 The preprocessing step is, the ZrB 2 The powder was soaked in dilute hydrochloric acid solution, cleaned and coarsened for 20 min, washed with deionized water three times, and then ZrB 2 The powder was sensitized by soaking in SnCl2 solution for 20 min, washed three times with deionized water, and finally the ZrB 2 powder soaked in PdCl 2 Activated in the solution for 40min, washed 3 times with deionized water, and the pretreatment process was completed in a magnetic stirrer. During the pretreatment process, the concentration of hydrochloric acid was 100ml / L, and the SnCl 2 +HCl is 30g / L+25ml / L, PdCl 2 +HCl is 0.7g / L+30ml / L;
[0013] Described electroless copper plating step is, plating solution is made of main salt CuS0 4 ·5H 2 0, reducing agent HCHO, complexing agent Na 2 EDTA, stabilizer 2,2'-pyrid...
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