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Ceramic-based composite material containing gas film holes and preparation method of ceramic-based composite material
The invention belongs to the technical field of ceramic matrix composite manufacturing, and discloses a ceramic matrix composite containing gas film holes and a preparation method thereof.The preparation method comprises the steps that a silicon carbide fiber woven preform and a plurality of graphite rods are obtained; inserting a plurality of graphite rods into crossed pores of the fiber bundles of the silicon carbide fiber woven preform according to a preset arrangement rule, and ensuring that the graphite rods have margins at the upper end and the lower end of the silicon carbide fiber woven preform; placing the silicon carbide fiber woven preform with the graphite rod in a chemical vapor deposition furnace for pyrolytic carbon interface layer deposition, and then placing the preform in a chemical vapor infiltration furnace for densification and SiC ceramic matrix deposition to obtain a ceramic matrix composite material with the graphite rod; and carrying out oxidation treatment on the ceramic-based composite material with the graphite rods in an oxidation furnace until all the graphite rods are completely oxidized, so as to obtain the ceramic-based composite material containing the gas film holes. The damage of a traditional processing method to a fiber reinforced phase is avoided, and the mechanical property of the ceramic-based composite material is kept.
本发明属于陶瓷基复合材料制造技术领域，公开了一种含有气膜孔的陶瓷基复合材料及其制备方法，包括：获取碳化硅纤维编织预制体及若干石墨棒；将若干石墨棒按照预设排布规律插入碳化硅纤维编织预制体的纤维束与纤维束交叉的孔隙内，且保证石墨棒在碳化硅纤维编织预制体的上下端留有余量；将带有石墨棒的碳化硅纤维编织预制体置于化学气相沉透炉中进行热解碳界面层沉积，然后置于化学气相渗透炉中进行致密化及沉积SiC陶瓷基体，得到带有石墨棒的陶瓷基复合材料；将带有石墨棒的陶瓷基复合材料在氧化炉中进行氧化处理至各石墨棒均完全氧化，得到含有气膜孔的陶瓷基复合材料。避免传统加工方法对纤维增强相的破坏，保持陶瓷基复合材料的力学性能。
Ceramic-based composite material containing gas film holes and preparation method of ceramic-based composite material
The invention belongs to the technical field of ceramic matrix composite manufacturing, and discloses a ceramic matrix composite containing gas film holes and a preparation method thereof.The preparation method comprises the steps that a silicon carbide fiber woven preform and a plurality of graphite rods are obtained; inserting a plurality of graphite rods into crossed pores of the fiber bundles of the silicon carbide fiber woven preform according to a preset arrangement rule, and ensuring that the graphite rods have margins at the upper end and the lower end of the silicon carbide fiber woven preform; placing the silicon carbide fiber woven preform with the graphite rod in a chemical vapor deposition furnace for pyrolytic carbon interface layer deposition, and then placing the preform in a chemical vapor infiltration furnace for densification and SiC ceramic matrix deposition to obtain a ceramic matrix composite material with the graphite rod; and carrying out oxidation treatment on the ceramic-based composite material with the graphite rods in an oxidation furnace until all the graphite rods are completely oxidized, so as to obtain the ceramic-based composite material containing the gas film holes. The damage of a traditional processing method to a fiber reinforced phase is avoided, and the mechanical property of the ceramic-based composite material is kept.
本发明属于陶瓷基复合材料制造技术领域，公开了一种含有气膜孔的陶瓷基复合材料及其制备方法，包括：获取碳化硅纤维编织预制体及若干石墨棒；将若干石墨棒按照预设排布规律插入碳化硅纤维编织预制体的纤维束与纤维束交叉的孔隙内，且保证石墨棒在碳化硅纤维编织预制体的上下端留有余量；将带有石墨棒的碳化硅纤维编织预制体置于化学气相沉透炉中进行热解碳界面层沉积，然后置于化学气相渗透炉中进行致密化及沉积SiC陶瓷基体，得到带有石墨棒的陶瓷基复合材料；将带有石墨棒的陶瓷基复合材料在氧化炉中进行氧化处理至各石墨棒均完全氧化，得到含有气膜孔的陶瓷基复合材料。避免传统加工方法对纤维增强相的破坏，保持陶瓷基复合材料的力学性能。
Ceramic-based composite material containing gas film holes and preparation method of ceramic-based composite material
一种含有气膜孔的陶瓷基复合材料及其制备方法
WU XIAOFENG (author) / LIN HONGJIAO (author) / JIANG SONGSHAN (author) / LIU XIUMEI (author) / LIU XIAOFEI (author) / LIN LIN (author) / HU WENHUI (author) / HAN FENG (author)
2023-10-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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