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The invention discloses an ultrahigh-temperature ceramic composite material with a fiber monolithic structure and a preparation method thereof. The ceramic composite material is a fiber monolithic structure, and comprises a fiber cell body and a cell body interface; and the fiber cell body is carbon, and the cell body interface is one of TiC ceramic, ZrC ceramic, HfC ceramic and TaC ceramic. The preparation method mainly comprises the following two steps: firstly, synthesizing skin-core structure fibers of which the outer layers are ultra-high-temperature ceramics and the core parts are carbon by taking carbon fibers as templates through a molten salt disproportionation method, then paving the skin-core structure fibers, and then carrying out spark plasma sintering to finally obtain the ultra-high-temperature ceramic composite material with the fiber monolithic structure. The ultrahigh-temperature ceramic composite material with the fiber monolithic structure has the characteristics of uniform organization structure, good mechanical property and the like; and the preparation method disclosed by the invention has the advantages of simple and controllable process, short production period, low cost and the like.
本发明公开一种纤维独石结构超高温陶瓷复合材料及其制备方法，该陶瓷复合材料为纤维独石结构，包括纤维胞体和胞体界面；所述纤维胞体为碳，所述胞体界面为TiC陶瓷、ZrC陶瓷、HfC陶瓷和TaC陶瓷中的一种。该制备方法主要包括两步：首先以碳纤维为模板经熔盐歧化法合成外层为超高温陶瓷、芯部为碳的皮芯结构纤维，然后将皮芯结构纤维铺排后进行放电等离子烧结，最终得到具有纤维独石结构的超高温陶瓷复合材料。本发明的纤维独石结构超高温陶瓷复合材料具有组织结构均匀、力学性能好等特点；本发明的制备方法具有工艺简单可控、生产周期短及成本低等优势。
The invention discloses an ultrahigh-temperature ceramic composite material with a fiber monolithic structure and a preparation method thereof. The ceramic composite material is a fiber monolithic structure, and comprises a fiber cell body and a cell body interface; and the fiber cell body is carbon, and the cell body interface is one of TiC ceramic, ZrC ceramic, HfC ceramic and TaC ceramic. The preparation method mainly comprises the following two steps: firstly, synthesizing skin-core structure fibers of which the outer layers are ultra-high-temperature ceramics and the core parts are carbon by taking carbon fibers as templates through a molten salt disproportionation method, then paving the skin-core structure fibers, and then carrying out spark plasma sintering to finally obtain the ultra-high-temperature ceramic composite material with the fiber monolithic structure. The ultrahigh-temperature ceramic composite material with the fiber monolithic structure has the characteristics of uniform organization structure, good mechanical property and the like; and the preparation method disclosed by the invention has the advantages of simple and controllable process, short production period, low cost and the like.
本发明公开一种纤维独石结构超高温陶瓷复合材料及其制备方法，该陶瓷复合材料为纤维独石结构，包括纤维胞体和胞体界面；所述纤维胞体为碳，所述胞体界面为TiC陶瓷、ZrC陶瓷、HfC陶瓷和TaC陶瓷中的一种。该制备方法主要包括两步：首先以碳纤维为模板经熔盐歧化法合成外层为超高温陶瓷、芯部为碳的皮芯结构纤维，然后将皮芯结构纤维铺排后进行放电等离子烧结，最终得到具有纤维独石结构的超高温陶瓷复合材料。本发明的纤维独石结构超高温陶瓷复合材料具有组织结构均匀、力学性能好等特点；本发明的制备方法具有工艺简单可控、生产周期短及成本低等优势。
Ultrahigh-temperature ceramic composite material with fiber monolithic structure and preparation method thereof
一种纤维独石结构超高温陶瓷复合材料及其制备方法
2022-01-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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