Preparation method of nickel coated ceramic composite powder
A technology of ceramic composite and ceramic powder, which is applied in the field of surface treatment of micron particles, can solve the problems of coating uneven self-nucleating metal, complicated process, easy introduction of impurity salts, etc., and achieves low production cost and simple preparation process , the effect of high completeness of coating
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] The fluidized bed reactor is heated to a reaction temperature of 750°C, and 20.0 g of titanium carbide ceramic powder with a particle size of 50 μm is added to the fluidized bed. The fluidizing gas is a mixed gas of argon and hydrogen, and the gas velocity is 0.1 m / s , the ratio of argon to hydrogen is 5:2, nickel chloride is used as nickel source, heated at 800°C, nickel chloride vapor uses argon as carrier gas, and the gas velocity of carrier gas is 0.05m / s. In the bed, it reacts with the hydrogen in the fluidized bed, and the reaction time is 15 minutes to obtain nickel-coated titanium carbide ceramic composite powder, and the tail gas enters the treatment system through the pipeline.
[0028] The field emission scanning electron microscope image of the nickel-coated titanium carbide composite is shown in figure 1 shown, from figure 1 It can be seen that metallic nickel is completely deposited on the surface of titanium carbide particles.
Embodiment 2
[0030] The fluidized bed reactor is heated to a reaction temperature of 700°C, and 10.0 g of silicon carbide ceramic powder with a particle size of 100 μm is added to the fluidized bed. The fluidizing gas is a mixed gas of argon and hydrogen, and the gas velocity is 0.05 m / s , the ratio of argon to hydrogen is 2:1, nickel bromide is used as the nickel source, heated at 700°C, the nickel bromide vapor is carried by argon as the carrier gas, and the carrier gas velocity is 0.01m / s, loaded into the fluidized In the bed, it reacts with the hydrogen in the fluidized bed, and the reaction time is 5 minutes to obtain nickel-coated ceramic composite powder, and the tail gas enters the treatment system through the pipeline.
Embodiment 3
[0032] The fluidized bed reactor is heated to a reaction temperature of 800°C, and 10.0 g of tungsten carbide ceramic powder with a particle size of 500 μm is added to the fluidized bed. The fluidizing gas is a mixed gas of argon and hydrogen, and the gas velocity is 0.5 m / s , the ratio of argon to hydrogen is 10:1, nickel iodide is used as the nickel source, heated at 850°C, the nickel iodide vapor uses argon as the carrier gas, and the gas velocity of the carrier gas is 0.1m / s. In the bed, it reacts with the hydrogen in the fluidized bed. The reaction time is 20 minutes, and the nickel-coated ceramic composite powder is obtained, and the tail gas enters the treatment system through the pipeline.
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com