Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In-situ construction method of high-temperature broadband wave-absorbing SiC periodic microtube ceramic
The invention belongs to the technical field of preparation of high-temperature broadband wave-absorbing ceramics, and particularly relates to an in-situ construction method of high-temperature broadband wave-absorbing SiC periodic microtube ceramics. Comprising the following steps: 1, weaving 1K T300 carbon fibers into a carbon fiber preform; 2, SiC ceramic is deposited on the carbon fiber preform in situ through a chemical vapor deposition method, a layered structure is formed after the SiC ceramic is deposited multiple times, and a porous Cf/SiC composite material is obtained; and 3, carrying out oxidation treatment on the porous Cf/SiC composite material to obtain the hollow SiC periodic microtube ceramic structures with different oxidation degrees. Through the innovative preparation method and the unique structural design, the SiC micron hollow tube periodic structure is constructed in situ, the problem that SiC powder is difficult to form is successfully solved, broadband strong absorption in a high-temperature environment is achieved, a new way is opened up for application of the SiC micron hollow tube periodic structure in the field of additive manufacturing, and the SiC micron hollow tube periodic structure has good application prospects. Meanwhile, the method has wide application prospects in the fields of aerospace, military and the like.
本发明属于高温宽频吸波陶瓷制备的技术领域，具体涉及一种高温宽频吸波SiC周期微管陶瓷的原位构筑方法。包括：步骤1：将1K T300碳纤维编织成碳纤维预制体；步骤2：采用化学气相沉积法在碳纤维预制体上原位沉积SiC陶瓷，多次沉积SiC陶瓷后形成层状结构，得到多孔Cf/SiC复合材料；步骤3：将多孔Cf/SiC复合材料氧化处理，得到不同氧化程度的空心SiC周期微管陶瓷结构。本发明通过创新的制备方法和独特的结构设计，原位构筑SiC微米空心管周期结构，成功解决了SiC粉体成型难等问题，并实现了高温环境下的宽频强吸收，为其在增材制造领域的应用开辟了新的道路，同时在航空航天、军事等领域具有广泛的应用前景。
In-situ construction method of high-temperature broadband wave-absorbing SiC periodic microtube ceramic
The invention belongs to the technical field of preparation of high-temperature broadband wave-absorbing ceramics, and particularly relates to an in-situ construction method of high-temperature broadband wave-absorbing SiC periodic microtube ceramics. Comprising the following steps: 1, weaving 1K T300 carbon fibers into a carbon fiber preform; 2, SiC ceramic is deposited on the carbon fiber preform in situ through a chemical vapor deposition method, a layered structure is formed after the SiC ceramic is deposited multiple times, and a porous Cf/SiC composite material is obtained; and 3, carrying out oxidation treatment on the porous Cf/SiC composite material to obtain the hollow SiC periodic microtube ceramic structures with different oxidation degrees. Through the innovative preparation method and the unique structural design, the SiC micron hollow tube periodic structure is constructed in situ, the problem that SiC powder is difficult to form is successfully solved, broadband strong absorption in a high-temperature environment is achieved, a new way is opened up for application of the SiC micron hollow tube periodic structure in the field of additive manufacturing, and the SiC micron hollow tube periodic structure has good application prospects. Meanwhile, the method has wide application prospects in the fields of aerospace, military and the like.
本发明属于高温宽频吸波陶瓷制备的技术领域，具体涉及一种高温宽频吸波SiC周期微管陶瓷的原位构筑方法。包括：步骤1：将1K T300碳纤维编织成碳纤维预制体；步骤2：采用化学气相沉积法在碳纤维预制体上原位沉积SiC陶瓷，多次沉积SiC陶瓷后形成层状结构，得到多孔Cf/SiC复合材料；步骤3：将多孔Cf/SiC复合材料氧化处理，得到不同氧化程度的空心SiC周期微管陶瓷结构。本发明通过创新的制备方法和独特的结构设计，原位构筑SiC微米空心管周期结构，成功解决了SiC粉体成型难等问题，并实现了高温环境下的宽频强吸收，为其在增材制造领域的应用开辟了新的道路，同时在航空航天、军事等领域具有广泛的应用前景。
In-situ construction method of high-temperature broadband wave-absorbing SiC periodic microtube ceramic
一种高温宽频吸波SiC周期微管陶瓷的原位构筑方法
XUE JIMEI (Autor:in) / HOU ZEXIN (Autor:in) / GAO YUAN (Autor:in) / WANG YUQIU (Autor:in) / FAN XIAOMENG (Autor:in)
27.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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