Preparation method of carbon/carbon material C-AlPO4-mullite-MoSi2 composite outer coating layer
A technology of c-alpo4- and mullite, which is applied in the field of preparing carbon/carbon composite composite outer coatings, can solve the problems of insufficient coating thickness, high requirements, imperfections, etc., and achieve low preparation costs and easy raw materials Easy to operate
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Embodiment 1
[0025] 1) Commercially available aluminum phosphate powder was calcined at 1300°C and wet ball milled to prepare C-AlPO with an average particle size of 5 μm 4 , and then 0.5g of nano-mullite powder prepared by sol-gel-microwave hydrothermal method (200910218827.9), 1g of C-AlPO 4 The powder and 1g of molybdenum disilicide powder were added to the Erlenmeyer flask, wherein the molybdenum disilicide powder was commercially available molybdenum disilicide, and the average particle size was 10 μm by wet ball milling, and then 200ml of butanol with a purity of ≥99.8% was poured into Prepare the suspension A in the Erlenmeyer flask, then put the suspension A into a 1000W ultrasonic generator to vibrate for 30min, place it on a magnetic stirrer and stir for 15h;
[0026] 2) Add selenium with a purity ≥ 99.7% to the suspension A, so that the concentration of selenium is 1g / L, then put it into a 1000W ultrasonic generator and shake for 30min, take it out and stir it on a magnetic stir...
Embodiment 2
[0031] 1) Commercially available aluminum phosphate powder was calcined at 1300°C and wet ball milled to prepare C-AlPO with an average particle size of 5 μm 4 , and then 2g of nano-mullite powder prepared by the method of preparing nano-mullite powder by sol-gel-microwave hydrothermal method (200910218827.9), 0.5g of C-AlPO 4 The powder and 5g of molybdenum disilicide powder were added to the Erlenmeyer flask, wherein the molybdenum disilicide powder was commercially available molybdenum disilicide and the average particle size was 10 μm after wet ball milling, and then 400ml of butanol with a purity of ≥99.8% was poured into Prepare the suspension A in the Erlenmeyer flask, then put the suspension A into a 600W ultrasonic generator to vibrate for 80min, place it on a magnetic stirrer and stir for 20h;
[0032] 2) Add selenium with a purity ≥ 99.7% to the suspension A so that the concentration of selenium is 1g / L, then put it into a 500W ultrasonic generator and shake it for ...
Embodiment 3
[0036] 1) Commercially available aluminum phosphate powder was calcined at 1300°C and wet ball milled to prepare C-AlPO with an average particle size of 5 μm 4 , and then 5g of nano-mullite powder prepared by the method of preparing nano-mullite powder by sol-gel-microwave hydrothermal method (200910218827.9), 5g of C-AlPO 4 The powder and 8g of molybdenum disilicide powder were added to the Erlenmeyer flask, wherein the molybdenum disilicide powder was commercially available molybdenum disilicide, and the average particle size was 10 μm by wet ball milling, and then 500ml of butanol with a purity of ≥99.8% was poured into Prepare the suspension A in the Erlenmeyer flask, then place the suspension A in an 800W ultrasonic generator to vibrate for 50 minutes, and place it on a magnetic stirrer to stir for 18 hours;
[0037] 2) Add selenium with a purity ≥ 99.7% to the suspension A, so that the concentration of selenium is 1g / L, then put it into a 600W ultrasonic generator and sh...
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