A kind of preparation method of titanium carbide reinforced titanium coated graphite powder
A titanium carbide and powder technology is applied in the field of preparation of titanium carbide reinforced titanium-coated graphite powder to achieve the effects of large production volume, increased coating yield and increased coating efficiency
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[0028] A kind of preparation method of titanium carbide reinforced titanium coated graphite powder of the present invention, comprises the following steps:
[0029] S1. First use the NaOH solution with a concentration of 15-20wt.% to fully wash the graphite powder, then rinse the graphite powder to neutrality with distilled water, and then evaporate to dryness;
[0030] The temperature of evaporative drying is 90-120°C, and the time is 1-2 hours;
[0031] The graphite powder is a graphite powder with a particle diameter of 20-40 μm, a particle size of 325-625 mesh, and a purity of 97.5-99.5%, and the shape of the powder is not specifically limited.
[0032] S2, laying the dried graphite powder evenly on the sample stage;
[0033] Graphite powder tile thickness is 1 ~ 2mm, the laying area is not more than 20cm 2 .
[0034] S3. Perform multi-arc ion plating titanium treatment on the laid graphite powder
[0035] Multi-arc ion plating titanium treatment means that the plating...
Embodiment 1
[0040] Titanium carbide reinforced titanium coated flake graphite powder
[0041] 1) First, fully wash flake graphite powder with a particle size of 40 μm, a particle size of 325 mesh, and a purity of 98.5% with a NaOH solution of a concentration of 15 wt.%. Rinse the flake graphite powder with distilled water until it becomes neutral, and then evaporate to dryness at a drying temperature of 90° C. for a drying time of 2 hours.
[0042] 2) Spread the dried flake graphite powder evenly on the sample stage, the thickness of the powder is 1.5mm, and the laying area is 20cm 2 .
[0043] 3) Perform multi-arc ion titanium plating on the flake graphite powder that has been laid. The specific plating parameters are that the plating time is 15 minutes, the plating atmosphere is argon, and the atmosphere pressure is 2.5×10 -1 Pa, the plating temperature is 250° C., the duty ratio is 55%, the bias voltage is 25 V, and the target material is a pure titanium target.
[0044] 4) After t...
Embodiment 2
[0046] Titanium carbide reinforced titanium-coated graphene
[0047] 1) First, the graphene with a particle size of 20 μm, a particle size of 625 mesh, and a purity of 99% is fully washed with a NaOH solution of a concentration of 15 wt.%. Then the graphene was rinsed with distilled water until neutral, and then evaporated to dryness at a drying temperature of 120° C. and a drying time of 1 hour.
[0048] 2) Place the dried graphene tiles evenly on the sample stage, the thickness of the powder tiles is 1mm, and the laying area is 15cm 2 .
[0049] 3) The laid graphene is subjected to multi-arc ion plating titanium treatment. The specific plating parameters are that the plating time is 12 minutes, the plating atmosphere is argon, and the atmosphere pressure is 3.5×10 -1 Pa, the plating temperature is 260° C., the duty cycle is 65%, the bias voltage is 35 V, and the target material is a pure titanium target.
[0050] 4) After the multi-arc ion plating titanium plating treatm...
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