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Preparation method of V-shaped ultrahigh-temperature ceramic nanowire toughened carbon-based composite material
The invention discloses a preparation method of a V-shaped ultrahigh-temperature ceramic nanowire toughened carbon-based composite material. The preparation method comprises the following steps: preparing a low-density carbon fiber preform, loading a catalyst, depositing to prepare an ultrahigh-temperature ceramic nanowire, obtaining a carbon fiber preform for in-situ growth of the V-shaped ultrahigh-temperature ceramic nanowire, and densifying; by adjusting parameters such as temperature and pressure in the deposition process, microtopographies such as the diameter and the growth direction of the ultra-high-temperature ceramic nanowire can be effectively controlled; the introduction sequence and content of the ultra-high-temperature ceramic precursor can be accurately controlled through an external powder precursor conveying device, so that the components of the ultra-high-temperature ceramic nanowire are effectively controlled; the invention can be used at a lower temperature (lt; the preparation of the multi-element solid solution ultrahigh-temperature ceramic nanowire is realized at the temperature of 1,600 DEG C, and ultrahigh-temperature ceramic with an ultrahigh melting point is introduced into a carbon fiber preform.
本发明公开了一种V型超高温陶瓷纳米线强韧化碳基复合材料的制备方法，包括低密度碳纤维预制体的制备、催化剂的加载、沉积制备超高温陶瓷纳米线、得到原位生长V型超高温陶瓷纳米线的碳纤维预制体、致密化；本发明通过调节沉积过程中温度、压力等参数，可有效控制超高温陶瓷纳米线直径和生长方向等微观形貌；通过外部粉料前驱体输送装置可精准控制超高温陶瓷前驱体的引入顺序和含量，从而有效控制超高温陶瓷纳米线的成分；本发明可在较低温度(<1600℃)下实现多元固溶体超高温陶瓷纳米线的制备，在碳纤维预制体内引入具有超高熔点的超高温陶瓷。
Preparation method of V-shaped ultrahigh-temperature ceramic nanowire toughened carbon-based composite material
The invention discloses a preparation method of a V-shaped ultrahigh-temperature ceramic nanowire toughened carbon-based composite material. The preparation method comprises the following steps: preparing a low-density carbon fiber preform, loading a catalyst, depositing to prepare an ultrahigh-temperature ceramic nanowire, obtaining a carbon fiber preform for in-situ growth of the V-shaped ultrahigh-temperature ceramic nanowire, and densifying; by adjusting parameters such as temperature and pressure in the deposition process, microtopographies such as the diameter and the growth direction of the ultra-high-temperature ceramic nanowire can be effectively controlled; the introduction sequence and content of the ultra-high-temperature ceramic precursor can be accurately controlled through an external powder precursor conveying device, so that the components of the ultra-high-temperature ceramic nanowire are effectively controlled; the invention can be used at a lower temperature (lt; the preparation of the multi-element solid solution ultrahigh-temperature ceramic nanowire is realized at the temperature of 1,600 DEG C, and ultrahigh-temperature ceramic with an ultrahigh melting point is introduced into a carbon fiber preform.
本发明公开了一种V型超高温陶瓷纳米线强韧化碳基复合材料的制备方法，包括低密度碳纤维预制体的制备、催化剂的加载、沉积制备超高温陶瓷纳米线、得到原位生长V型超高温陶瓷纳米线的碳纤维预制体、致密化；本发明通过调节沉积过程中温度、压力等参数，可有效控制超高温陶瓷纳米线直径和生长方向等微观形貌；通过外部粉料前驱体输送装置可精准控制超高温陶瓷前驱体的引入顺序和含量，从而有效控制超高温陶瓷纳米线的成分；本发明可在较低温度(<1600℃)下实现多元固溶体超高温陶瓷纳米线的制备，在碳纤维预制体内引入具有超高熔点的超高温陶瓷。
Preparation method of V-shaped ultrahigh-temperature ceramic nanowire toughened carbon-based composite material
一种V型超高温陶瓷纳米线强韧化碳基复合材料的制备方法
FU YANQIN (author) / LI TAO (author) / HAN LIYUAN (author) / WANG PEI (author) / ZHANG YULEI (author) / BAO YIWANG (author)
2024-08-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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