Method for preparing self-supporting diamond film
A diamond film, self-supporting technology, applied in the direction of metal material coating process, coating, gaseous chemical plating, etc., can solve the problems of pollution, Si non-reusable environment, prone to cracks, etc., to reduce costs and prevent long-term The effect of distance diffusion and pollution avoidance
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[0028] The present invention will be further described below in conjunction with the drawings:
[0029] Such as Figure 1 to Figure 5 As shown, a method for preparing a self-supporting diamond film includes the following steps:
[0030] 1) Preparation of titanium coating: Take a silicon substrate 1 with a thickness of 3-5mm, clean it with deionized water and acetone, and dry it with hot air. Use magnetron sputtering or double-glow plasma infiltration method. A layer of titanium metal coating 2 with a thickness of 10-20 μm is prepared on the upper surface and side surfaces of the silicon substrate 1;
[0031] 2) Preparation of molybdenum coating: using double-glow plasma infiltration method to prepare another layer of molybdenum coating 3 with a thickness of 2-4 μm on the titanium coating 2 on the upper surface of the silicon substrate 1;
[0032] 3) Preparation of diamond film: Use diamond powder with a particle size of 3-10μm to grind the surface of the molybdenum metal coating 3 on...
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