氧化物纤维增强氧化物陶瓷基复合材料的研究进展

Research progress of oxide ceramic matrix composites reinforced by oxide fiber

氧化物纤维增强氧化物陶瓷基复合材料因优异力学性能、抗氧化性而备受关注,在载人航天、军工等领域具有极高战略地位.本文围绕该类材料强韧化研究现状,总结了增强体纤维和基体材料的性质及选取原则,指出纤维相和基体相高温力学性能亟需提升,未来应大力开发新组分材料体系;综述了复合材料结构优化方案,表明基于双相力学缺陷开展力学结构优化、合理设计相界面结构是未来重点研发方向;对比总结了该类材料现有制备工艺,对未来有潜力的制备技术进行了展望.

Oxide fiber reinforced oxide ceramic matrix composites have high strategic positions in spaceflight,military and other fields,due to their excellent mechanical properties and oxidation resistance.The properties and selection principles of fiber and matrix are summarized,based on the research status of strengthening and toughening mechanisms,indicating that mechanical properties of fiber and matrix in high temperature need to be improved,great efforts should be made to develop new potential materials in the future.The structural optimization schemes of these composites are summarized,which points out that it will be the key research direction to design interface structure and optimize mechanical structure based on phase defects.The present preparation technology of these materials is compared and the potential preparation technology in the future is prospected.