High temperature resistant ceramic matrix composite material and preparation method thereof
A technology of ultra-high temperature ceramics and composite materials, which is applied in the field of ultra-high temperature resistant ceramic matrix composite materials and its preparation technology, can solve the problems of difficult forming of large and complex components, poor reliability, and poor thermal shock resistance of materials, and achieve excellent thermal resistance. seismic performance, high reliability, high fracture toughness effect
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[0018] Example 1
[0019] A 2D C / ZrB 2 -SiC ultra-high temperature resistant ceramic matrix composite material, the composite material uses two-dimensional carbon fiber cloth as the reinforcing phase, and uses high melting point boride (ZrB 2 ) The ceramic powder is the filler, the silicon carbide is the matrix, and the volume fraction of the reinforcing phase carbon fiber is 25.45%, and the filler is ZrB 2 The volume fraction of the powder is 20.33%, the volume fraction of the SiC matrix is 35%, and the porosity is 19.22%.
[0020] The above 2D C / ZrB 2 -SiC ultra-high temperature resistant ceramic matrix composite material is prepared through the following steps:
[0021] (1) Prepare a mixed solution of PCS, divinylbenzene, and xylene in a mass ratio of 1:0.3:0.5, and then combine the mixed solution with ZrB 2 The powder is mixed at a volume ratio of 1:3, and then ball milled for 8 hours to form a slurry;
[0022] (2) Cut the 3K carbon fiber cloth produced by Jilin Carbon Facto...
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[0027] Example 2
[0028] A 2D C / TaC-SiC ultra-high temperature resistant ceramic matrix composite material. The composite material uses two-dimensional carbon fiber cloth as a reinforcing phase, a high melting point carbide (TaC) ceramic powder as a filler, and silicon carbide as a matrix. The volume fraction of reinforcing phase carbon fiber is 20.5%, the volume fraction of filler TaC powder is 40.0%, the volume fraction of SiC matrix is 34.3%, and the porosity is 5.2%.
[0029] The above 2D C / TaC-SiC ultra-high temperature resistant ceramic matrix composite material is prepared through the following steps:
[0030] (1) Prepare a mixed solution of PCS and divinylbenzene at a mass ratio of 1:1, then mix the mixed solution with TaC powder at a volume ratio of 1:4, and form a slurry after ball milling for 8 hours;
[0031] (2) to (5) are the same as steps (2) to (5) of Example 1.
[0032] The density of the final 2D C / TaC-SiC ultra-high temperature resistant ceramic matrix compos...
Example Embodiment
[0033] Example 3
[0034] A 2D C / ZrB 2 -C Ultra-high temperature resistant ceramic matrix composite material, the composite material uses two-dimensional carbon fiber cloth as the reinforcing phase, with high melting point boride (ZrB 2 ) The ceramic powder is the filler, the carbon is the matrix, the volume fraction of the reinforcing phase carbon fiber is 44.8%, and the filler is ZrB2 The volume fraction of powder is 5.6%, the volume fraction of C matrix is 35%, and the porosity is 14.6%.
[0035] The above 2D C / ZrB 2 -C ultra-high temperature resistant ceramic matrix composite material is prepared through the following steps:
[0036] (1) Prepare a mixed solution of phenolic resin and acetone in a ratio of 1:1, and then combine the mixed solution with ZrB 2 The powder is mixed at a volume ratio of 1:1, and a slurry is formed after 8 hours of ball milling;
[0037] (2) and (3) are the same as steps (2) and (3) of embodiment 1;
[0038] (4) Put the above-mentioned lysed sample ...
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