Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-entropy ceramic-based composite material and preparation method thereof
The invention belongs to the technical field of ceramic-based composite materials, and particularly relates to a high-entropy ceramic-based composite material and a preparation method thereof.The preparation method comprises the following steps that S1, high-entropy ceramic slurry is prepared; preparing a porous composite material preform; s2, putting the porous composite material preform into high-entropy ceramic slurry, performing vacuum and pressure impregnation, and then performing curing and cracking to obtain an intermediate I; s3, repeating S2 for multiple times, and performing heat treatment to prepare an intermediate II; s4, preparing a mixed solution of a ceramic precursor and an organic solvent; s3, putting the intermediate II in the mixed solution, performing vacuum and pressure impregnation, and then performing curing cracking to prepare an intermediate III; and S5, repeating the step S4 for multiple times to prepare the high-entropy ceramic-based composite material. The prepared high-entropy ceramic-based composite material is high in density, the volume fraction of ultrahigh-temperature high-entropy ceramic in a matrix in the composite material can reach 50% or above, and the high-entropy ceramic-based composite material has excellent ultrahigh-temperature ablation resistance.
本发明属于陶瓷基复合材料技术领域，具体涉及一种高熵陶瓷基复合材料及其制备方法，包括以下步骤：S1、配制高熵陶瓷浆料；制备多孔复合材料预成型体；S2、将多孔复合材料预成型体置于高熵陶瓷浆料中，进行真空、压力浸渍，随后进行固化裂解，中间体一；S3、重复S2多次后，进行热处理，制备中间体二；S4、配制陶瓷前驱体与有机溶剂的混合溶液；将S3中间体二置于所述混合溶液中，进行真空、压力浸渍，随后进行固化裂解，制备中间体三；S5、重复S4多次后，制得高熵陶瓷基复合材料。本发明制备的高熵陶瓷基复合材料密度较高，在复合材料内部基体中超高温高熵陶瓷体积分数可达50％以上，具备优异的超高温抗烧蚀性能。
High-entropy ceramic-based composite material and preparation method thereof
The invention belongs to the technical field of ceramic-based composite materials, and particularly relates to a high-entropy ceramic-based composite material and a preparation method thereof.The preparation method comprises the following steps that S1, high-entropy ceramic slurry is prepared; preparing a porous composite material preform; s2, putting the porous composite material preform into high-entropy ceramic slurry, performing vacuum and pressure impregnation, and then performing curing and cracking to obtain an intermediate I; s3, repeating S2 for multiple times, and performing heat treatment to prepare an intermediate II; s4, preparing a mixed solution of a ceramic precursor and an organic solvent; s3, putting the intermediate II in the mixed solution, performing vacuum and pressure impregnation, and then performing curing cracking to prepare an intermediate III; and S5, repeating the step S4 for multiple times to prepare the high-entropy ceramic-based composite material. The prepared high-entropy ceramic-based composite material is high in density, the volume fraction of ultrahigh-temperature high-entropy ceramic in a matrix in the composite material can reach 50% or above, and the high-entropy ceramic-based composite material has excellent ultrahigh-temperature ablation resistance.
本发明属于陶瓷基复合材料技术领域，具体涉及一种高熵陶瓷基复合材料及其制备方法，包括以下步骤：S1、配制高熵陶瓷浆料；制备多孔复合材料预成型体；S2、将多孔复合材料预成型体置于高熵陶瓷浆料中，进行真空、压力浸渍，随后进行固化裂解，中间体一；S3、重复S2多次后，进行热处理，制备中间体二；S4、配制陶瓷前驱体与有机溶剂的混合溶液；将S3中间体二置于所述混合溶液中，进行真空、压力浸渍，随后进行固化裂解，制备中间体三；S5、重复S4多次后，制得高熵陶瓷基复合材料。本发明制备的高熵陶瓷基复合材料密度较高，在复合材料内部基体中超高温高熵陶瓷体积分数可达50％以上，具备优异的超高温抗烧蚀性能。
High-entropy ceramic-based composite material and preparation method thereof
一种高熵陶瓷基复合材料及其制备方法
CAO YEJIE (Autor:in) / SHAO XIONGJIAN (Autor:in) / LIU YONGSHENG (Autor:in) / ZHANG YUNHAI (Autor:in) / DONG NING (Autor:in) / WANG YIGUANG (Autor:in)
20.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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