Diamond compound body and diamond surface metallization method
A composite and diamond technology, which is applied in the field of diamond composite and diamond surface metallization, can solve the problems of difficult control of plating surface uniformity, low efficiency, and low bonding strength
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[0062] In the preparation method of the diamond composite of the present invention, the heating reaction is usually carried out at 800-1400°C (preferably 1150-1350°C), and the reaction time is usually 1-240 minutes (preferably 60-120°C). minute). The heating reaction is carried out in vacuum or in an atmosphere with a pressure of 1Pa-120kPa.
[0063] In a preferred example, the preparation method of the present invention comprises the steps of:
[0064] (1) provide a kind of mixed slurry comprising diamond particle, boron raw material, copper raw material and organic solvent;
[0065] (2) Under vacuum or in an inert or reducing atmosphere of hydrogen, argon or a combination thereof, the mixed slurry in step (1) is heated and reacted to obtain a diamond composite; and the boron alloy is boron copper alloy.
[0066] Calculated on the basis of the total weight of the mixed slurry in step (1), the mass fraction of diamond particles is 5-95wt%, preferably 20-85wt%, and more pref...
Embodiment 1
[0086] Example 1 Diamond-boron carbide-boron nano-coating composite (as the diamond composite intermediate of the present invention)
[0087] Mix diamond particles with an average particle size of about 100 μm with high-purity boron powder and a small amount of polyethylene glycol (molecular weight: 2000) to make a mixture. Calculated by the total weight of the mixture, boron powder accounts for 10wt%, polyethylene glycol accounts for 5wt %. Put the mixture in a blender and stir to mix evenly to prepare a slurry. Put it into a vacuum carbon tube furnace and evacuate to a vacuum of about 10 -2 Pa, then pass in hydrogen, the gas pressure is 1Pa-120kPa, the temperature rise rate is 10°C / min to 1250°C, keep the temperature for 60min, and then cool down to room temperature with the furnace.
[0088] Take out the high-temperature-treated mixture, pass through sieves of 30 mesh, 60 mesh, 80 mesh, 100 mesh, 150 mesh, and 300 mesh respectively, and then ultrasonically wash to remove ...
Embodiment 2
[0089] Example 2 Diamond-boron carbide-boron-copper alloy nano-coating complex
[0090] The diamond-boron carbide-boron nano-coating composite prepared in Example 1, copper powder, and alcohol were prepared into a slurry, and then calculated based on the total weight of the slurry, the copper powder accounted for 10wt%, and the alcohol accounted for 5wt%. Place the slurry in a blender and blend until smooth. Put it into a vacuum carbon tube furnace and evacuate to a vacuum of about 10 -2 Pa, then pass in hydrogen, the gas pressure is 1Pa-120kPa, the temperature rise rate is 10°C / min to 1000°C, keep the temperature for 60min, and then cool down to room temperature with the furnace.
[0091] Take out the high-temperature-treated mixture, pass through sieves of 30 mesh, 60 mesh, 80 mesh, 100 mesh, 150 mesh, and 300 mesh respectively, and then ultrasonically wash to remove impurities, remove excess copper powder, and obtain diamond-boron carbide-boron-copper alloy Nanocoating co...
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Abstract
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