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Ceramic matrix composite material with high matrix toughness and preparation method thereof
The invention provides a ceramic matrix composite material with high matrix toughness and a preparation method thereof, and relates to the field of composite materials. According to the embodiment of the invention, based on an infiltration process, high-carbon resin, TiC powder, Al powder and an organic solvent are mixed to obtain mixed slurry, and after the mixed slurry and fibers are prepared into a prepreg, the prepreg is subjected to hot-pressing curing and stage carbonization cracking treatment to obtain a specific fiber/C porous body; then, by adopting a staged infiltration reaction and utilizing the melting temperature difference of TiAl and Si, TiAl is preferentially melted to act with AlN, TiC and C to generate a ternary layered phase, and Si powder is melted at a higher temperature to generate SiC with a C porous body, so that the multi-component toughened SiCf/SiC composite material is obtained. According to the method, a multi-fracture energy absorption mechanism is formed when the composite material bears a load under the combined action of a layered structure and multi-component components of the MAX phase, and effective toughening of the ceramic matrix composite material is achieved.
本发明提供了一种高基体韧性的陶瓷基复合材料及其制备方法，涉及复合材料领域。本发明实施例基于熔渗工艺，将高炭树脂、TiC粉、Al粉和有机溶剂混合，得到混合料浆，与纤维制成预浸料后，经过热压固化，采取阶段碳化裂解处理，得到特定的纤维/C多孔体；随后采用阶段熔渗反应，利用TiAl及Si的熔化温度差异，使TiAl优先熔化与AlN、TiC、C作用生成三元层状相，而Si粉在更高温度熔化与C多孔体生成SiC，得到多组元增韧的SiCf/SiC复合材料。该方法利用MAX相自身的层状结构以及多元组分共同作用，在复合材料承受载荷时形成多重断裂能吸收机制，实现陶瓷基复合材料的有效增韧。
Ceramic matrix composite material with high matrix toughness and preparation method thereof
The invention provides a ceramic matrix composite material with high matrix toughness and a preparation method thereof, and relates to the field of composite materials. According to the embodiment of the invention, based on an infiltration process, high-carbon resin, TiC powder, Al powder and an organic solvent are mixed to obtain mixed slurry, and after the mixed slurry and fibers are prepared into a prepreg, the prepreg is subjected to hot-pressing curing and stage carbonization cracking treatment to obtain a specific fiber/C porous body; then, by adopting a staged infiltration reaction and utilizing the melting temperature difference of TiAl and Si, TiAl is preferentially melted to act with AlN, TiC and C to generate a ternary layered phase, and Si powder is melted at a higher temperature to generate SiC with a C porous body, so that the multi-component toughened SiCf/SiC composite material is obtained. According to the method, a multi-fracture energy absorption mechanism is formed when the composite material bears a load under the combined action of a layered structure and multi-component components of the MAX phase, and effective toughening of the ceramic matrix composite material is achieved.
本发明提供了一种高基体韧性的陶瓷基复合材料及其制备方法，涉及复合材料领域。本发明实施例基于熔渗工艺，将高炭树脂、TiC粉、Al粉和有机溶剂混合，得到混合料浆，与纤维制成预浸料后，经过热压固化，采取阶段碳化裂解处理，得到特定的纤维/C多孔体；随后采用阶段熔渗反应，利用TiAl及Si的熔化温度差异，使TiAl优先熔化与AlN、TiC、C作用生成三元层状相，而Si粉在更高温度熔化与C多孔体生成SiC，得到多组元增韧的SiCf/SiC复合材料。该方法利用MAX相自身的层状结构以及多元组分共同作用，在复合材料承受载荷时形成多重断裂能吸收机制，实现陶瓷基复合材料的有效增韧。
Ceramic matrix composite material with high matrix toughness and preparation method thereof
一种高基体韧性的陶瓷基复合材料及其制备方法
ZHOU YIRAN (author) / JIAO JIAN (author) / LIU HU (author) / YANG JINHUA (author) / AI YINGJUN (author) / SONG JIUPENG (author)
2024-06-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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