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Ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder with core-shell structure and preparation method of ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder
The invention discloses ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder with a core-shell structure and a preparation method of the ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder. A layer of uniform and thickness-controllable ultrahigh-temperature ceramic solid solution coating layer is formed on the surface of a carbon microsphere particle by utilizing a chemical coating method to carry out coating modification on a carbon/graphite matrix; the powder has excellent sintering performance and oxidation resistance, and is used as a raw material for sintering to prepare the ultrahigh-temperature ceramic solid solution skeleton enhanced carbon/graphite-based composite material, so that not only can the mechanical and sintering performance of the carbon/graphite-based material be improved, but also the long-acting oxidation resistance and ablation resistance of the material can be remarkably improved, and the service life of the carbon/graphite-based composite material is prolonged. Therefore, the material can be used as an anti-oxidation and anti-ablation structure function integrated material for rocket engine throat liners and aerospace equipment and the like.
本发明公开一种核壳结构的超高温陶瓷固溶体包覆碳微球复合粉体及其制备方法，通过在碳微球颗粒表面利用化学包覆法形成一层均匀且厚度可控的超高温陶瓷固溶体包覆层对碳/石墨基体进行包覆改性，使得该粉体具有优异的烧结性能和抗氧化性能，再以其作为原料烧结制备出超高温陶瓷固溶体骨架增强的碳/石墨基复合材料，不仅可提升碳/石墨基材料的力学和烧结性能，而且可显著提升材料的长效抗氧化抗烧蚀性能，从而可作为火箭发动机喉衬、航空航天装备用抗氧化抗烧蚀结构功能一体化材料等使用。
Ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder with core-shell structure and preparation method of ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder
The invention discloses ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder with a core-shell structure and a preparation method of the ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder. A layer of uniform and thickness-controllable ultrahigh-temperature ceramic solid solution coating layer is formed on the surface of a carbon microsphere particle by utilizing a chemical coating method to carry out coating modification on a carbon/graphite matrix; the powder has excellent sintering performance and oxidation resistance, and is used as a raw material for sintering to prepare the ultrahigh-temperature ceramic solid solution skeleton enhanced carbon/graphite-based composite material, so that not only can the mechanical and sintering performance of the carbon/graphite-based material be improved, but also the long-acting oxidation resistance and ablation resistance of the material can be remarkably improved, and the service life of the carbon/graphite-based composite material is prolonged. Therefore, the material can be used as an anti-oxidation and anti-ablation structure function integrated material for rocket engine throat liners and aerospace equipment and the like.
本发明公开一种核壳结构的超高温陶瓷固溶体包覆碳微球复合粉体及其制备方法，通过在碳微球颗粒表面利用化学包覆法形成一层均匀且厚度可控的超高温陶瓷固溶体包覆层对碳/石墨基体进行包覆改性，使得该粉体具有优异的烧结性能和抗氧化性能，再以其作为原料烧结制备出超高温陶瓷固溶体骨架增强的碳/石墨基复合材料，不仅可提升碳/石墨基材料的力学和烧结性能，而且可显著提升材料的长效抗氧化抗烧蚀性能，从而可作为火箭发动机喉衬、航空航天装备用抗氧化抗烧蚀结构功能一体化材料等使用。
Ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder with core-shell structure and preparation method of ultrahigh-temperature ceramic solid solution coated carbon microsphere composite powder
一种核壳结构的超高温陶瓷固溶体包覆碳微球复合粉体及其制备方法
WANG JIPING (author) / SHI ZHONGQI (author) / ZHAO XINYANG (author) / XIE WENQI (author) / ZHAO LEI (author) / XIA HONGYAN (author) / WANG BO (author)
2022-07-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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