Method for rapidly preparing C/SIC ceramic composite material with pre-introduced matrix
A technology of ceramic composite materials and matrix materials, applied in the field of composite ceramic materials, can solve the problems of shortening production cycle, long preparation cycle, and reducing raw materials, and achieve the effects of shortening production cycle, reducing material cost, and reducing cost
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Embodiment 1
[0034] A method for pre-introducing a matrix to prepare a C / SiC material 1, comprising the following steps:
[0035] 1) Braided body processing: the fabric adopts carbon cloth plus mesh tire puncture structure, carbon cloth and mesh tire are woven alternately, and 20g of SiC powder is evenly spread on each layer of mesh tire; the specific process parameters are as follows:
[0036] Table 1 Embodiment 1 fabric structure parameter table
[0037] project
skills requirement
Carbon cloth warp specifications
12K×1
Carbon cloth weft specification
12K×1
Carbon cloth warp density (root / 10cm)
80±2(mean value)
Carbon cloth weft yarn density (root / 10cm)
80±2(mean value)
Normal yarn specification
6K×1
Normal weft density (needle / 1cm)
2 stitches / 1cm
Normal warp density (pin / 1cm)
2 stitches / 1cm
Meridian volume content
16~18%
Weft volume content
16~18%
normal volume content
2~5...
Embodiment 2
[0046] A method for pre-introducing a matrix to prepare a C / SiC material 2, comprising the following steps:
[0047] 1) Braided body processing: The fabric adopts a carbon cloth plus mesh tire puncture structure, carbon cloth and mesh tires are woven alternately, and 30g of SiC powder is evenly spread on each layer of mesh tires. The specific process parameters are as follows:
[0048] Table 2 Example 2 fabric structure parameter table
[0049] project
skills requirement
Carbon cloth warp specifications
12K×1
Carbon cloth weft specification
12K×1
Carbon cloth warp density (root / 10cm)
80±2(mean value)
Carbon cloth weft yarn density (root / 10cm)
80±2(mean value)
Normal yarn specification
6K×1
Normal weft density (needle / 1cm)
2 stitches / 1cm
Normal warp density (pin / 1cm)
2 stitches / 1cm
Meridian volume content
16~18%
Weft volume content
16~18%
normal volume content
2...
Embodiment 3
[0058] A method for pre-introducing a matrix into a C / SiC material, comprising the following steps:
[0059] 1) Braided body processing: the fabric adopts a carbon cloth plus mesh tire puncture structure, carbon cloth and mesh tires are woven alternately, and 10g of SiC powder is evenly spread on each layer of mesh tires. The specific process parameters are as follows:
[0060] Table 3 embodiment 3 fabric structure parameter list
[0061]
[0062]
[0063] 2) Pretreatment of braided body Soak the braided body in step 1) in acetone solution for 2 hours, handle with care during the soaking process, and do not shake the container solution. Put the braided body into an oven at 120°C, keep warm for 6 hours and dry;
[0064] 3) Perform CVD pretreatment on the braided body in step 2): propylene is used as the carbon source gas, the flow rate is 40mL / min, nitrogen or argon is used as the dilution gas; the deposition reaction temperature is 900°C, the deposition pressure is 8KP...
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