A kind of method for preparing copper-based diamond composite material
A composite material and diamond technology, which is applied in the field of preparation of copper-based diamond composite materials, to achieve the effects of reduced post-processing, high density and simple process
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Embodiment 1
[0044] In the copper-based diamond composite material prepared in this embodiment, the mass percentage of diamond is 40%.
[0045] The preparation method is as follows:
[0046] (1) The method of magnetron sputtering is used to plate a Cr coating of 0.5 μm on the surface of diamond powder with a particle size of 200 μm to form a Cr-coated diamond single crystal;
[0047] (2) According to the final size recorded in the copper-based diamond composite material drawing prepared by the present embodiment, the commercially available No. 1 oxygen-free copper plate is processed into an oxygen-free copper mould;
[0048] (3) according to the diamond tap density measured in advance, calculate the diamond weight according to m=ρv to be 12g, then take by weighing 12g of Cr-plated diamond and pour it into an oxygen-free copper mold to vibrate;
[0049] (4) Add dropwise an aqueous aluminum phosphate solution with a mass percentage concentration of 30% to the vibrated Cr-coated diamond, the...
Embodiment 2
[0053] In the copper-based diamond composite material prepared in this example, CuB 2 The mass percentage content of the alloy is 38%, and the mass percentage content of the diamond is 62%.
[0054] (1) placing high-purity B powder and pure copper block in a vacuum intermediate frequency smelting furnace for smelting, and finally obtaining a copper-boron alloy ingot with a B content of 2wt%;
[0055] (2) Rolling the above-mentioned copper-boron alloy ingot to be thinned to a required thickness to obtain a copper-boron alloy plate;
[0056] (3) According to the final size recorded in the copper-based diamond composite material drawing prepared in this embodiment, the above-mentioned copper-boron alloy plate is processed into a mould;
[0057] (4) according to the diamond tap density measured in advance, calculate the diamond weight according to m=ρv is 10g, take by weighing 10g grain size and be the diamond single crystal of 100 μ m and pour it into the above-mentioned mold an...
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