Preparation method of external SiC-CrB composite coating of carbon/carbon composite material
A carbon composite material and outer coating technology, which is applied in the field of preparation of carbon/carbon composite outer coating, can solve the problems of easy cracking of the outer coating surface, inability to complete the preparation at one time, and insufficient coating thickness, etc. The effect of short cycle time, uniform thickness and low cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] 1) First add 5.0g of CrB powder into the conical flask, then pour 1000mL of glycerol with a purity ≥ 99.8% into the conical flask to obtain a suspension, and then put the suspension into a 400W ultrasonic generator for vibration After 40 minutes, take it out and put it into a magnetic rotor, place it on a magnetic stirrer and stir for 4 hours to obtain a suspension A, wherein the CrB powder is dried after wet ball milling, and the average particle size is 300-500nm;
[0025] 2) Add elemental arsenic with a purity ≥ 99.7% to the suspension A, prepare a solution with an elemental arsenic concentration of 3.0g / L, put it into a 400W ultrasonic generator and shake it for 40min, take it out and stir it on a magnetic stirrer 4h to obtain solution B;
[0026] 3) Pour solution B into the hydrothermal kettle, then clamp the carbon / carbon composite material sample with SiC inner coating on the cathode clamp in the hydrothermal kettle, seal the hydrothermal kettle and put it into t...
Embodiment 2
[0029] 1) First add 5.0g of CrB powder into the conical flask, then pour 1200mL of glycerol with a purity ≥ 99.8% into the conical flask to obtain a suspension, and then put the suspension into a 600W ultrasonic generator for vibration After 60 minutes, take it out and put it into a magnetic rotor, place it on a magnetic stirrer and stir for 4 hours to obtain a suspension A, wherein the CrB powder is dried after wet ball milling, and the average particle size is 300-500nm;
[0030]2) Add elemental arsenic with a purity ≥ 99.7% to the suspension A, prepare a solution with an elemental arsenic concentration of 3.0g / L, put it into a 600W ultrasonic generator and shake for 60min, take it out and stir it on a magnetic stirrer 4h to obtain solution B;
[0031] 3) Pour solution B into the hydrothermal kettle, then clamp the carbon / carbon composite material sample with SiC inner coating on the cathode clamp in the hydrothermal kettle, seal the hydrothermal kettle and put it into the m...
Embodiment 3
[0034] 1) First add 5.5g of CrB powder into the conical flask, then pour 1200mL of glycerol with a purity ≥ 99.8% into the conical flask to obtain a suspension, and then put the suspension into an 800W ultrasonic generator for vibration After 60 minutes, take it out and put it into a magnetic rotor, place it on a magnetic stirrer and stir for 5 hours to obtain a suspension A, wherein the CrB powder is dried after wet ball milling, and the average particle size is 300-500nm;
[0035] 2) Add elemental arsenic with a purity ≥ 99.7% to the suspension A, prepare a solution with an elemental arsenic concentration of 3.5g / L, put it into an 800W ultrasonic generator and shake for 60min, take it out and stir it on a magnetic stirrer 5h to obtain solution B;
[0036] 3) Pour solution B into the hydrothermal kettle, then clamp the carbon / carbon composite material sample with SiC inner coating on the cathode clamp in the hydrothermal kettle, seal the hydrothermal kettle and put it into th...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More