Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature and high-pressure preparation method of nickel-plated carbon fiber/silicon oxide composite material
The invention discloses a high-temperature and high-pressure preparation method of a nickel-plated carbon fiber/silicon oxide composite material, and belongs to the technical field of preparation of carbon fiber/ceramic composite materials. The method comprises the following steps: firstly, carrying out surface nickel plating treatment on raw material carbon fibers; the preparation method comprises the following steps: preparing nickel-plated carbon fibers, hydrolyzing a silane coupling agent in an alcohol-water solution for 0.5-24 hours, adding the nickel-plated carbon fibers, reacting for 0.5-24 hours, carrying out suction filtration and drying to obtain composite modified carbon fibers, loading the composite modified carbon fibers into an assembly block of a cubic press, and sintering and pressing for 10-30 minutes under the conditions of 1000-1600 DEG C and 1-5 GPa to obtain the block carbon fiber/silicon oxide ceramic composite material. The method overcomes the defect that the strength and toughness of the material are difficult to effectively improve due to the fact that heterogeneous phases mainly depend on physical adhesion in a traditional method, the interface bonding capacity of silicon oxide and carbon fibers is remarkably improved, and the strength and toughness of a synthetic sample are improved.
本发明的一种镀镍碳纤维/氧化硅复合材料的高温高压制备方法属于碳纤维/陶瓷复合材料的制备技术领域，首先对原料碳纤维进行表面镀镍处理；然后将硅烷偶联剂在醇水溶液中水解0.5～24小时，再加入镀镍碳纤维，反应0.5～24小时，抽滤烘干后得到复合改性碳纤维，并将其装于六面顶压机的组装块中，在1000～1600℃、1～5GPa条件下烧结压制10～30分钟，得到块体的碳纤维/氧化硅陶瓷复合材料。本发明克服了传统方法中异质相间主要依靠物理粘附而难以有效提高材料强度与韧性的弊端，显著改善了氧化硅与碳纤维的界面结合能力，提高了合成试样的强度与韧性。
High-temperature and high-pressure preparation method of nickel-plated carbon fiber/silicon oxide composite material
The invention discloses a high-temperature and high-pressure preparation method of a nickel-plated carbon fiber/silicon oxide composite material, and belongs to the technical field of preparation of carbon fiber/ceramic composite materials. The method comprises the following steps: firstly, carrying out surface nickel plating treatment on raw material carbon fibers; the preparation method comprises the following steps: preparing nickel-plated carbon fibers, hydrolyzing a silane coupling agent in an alcohol-water solution for 0.5-24 hours, adding the nickel-plated carbon fibers, reacting for 0.5-24 hours, carrying out suction filtration and drying to obtain composite modified carbon fibers, loading the composite modified carbon fibers into an assembly block of a cubic press, and sintering and pressing for 10-30 minutes under the conditions of 1000-1600 DEG C and 1-5 GPa to obtain the block carbon fiber/silicon oxide ceramic composite material. The method overcomes the defect that the strength and toughness of the material are difficult to effectively improve due to the fact that heterogeneous phases mainly depend on physical adhesion in a traditional method, the interface bonding capacity of silicon oxide and carbon fibers is remarkably improved, and the strength and toughness of a synthetic sample are improved.
本发明的一种镀镍碳纤维/氧化硅复合材料的高温高压制备方法属于碳纤维/陶瓷复合材料的制备技术领域，首先对原料碳纤维进行表面镀镍处理；然后将硅烷偶联剂在醇水溶液中水解0.5～24小时，再加入镀镍碳纤维，反应0.5～24小时，抽滤烘干后得到复合改性碳纤维，并将其装于六面顶压机的组装块中，在1000～1600℃、1～5GPa条件下烧结压制10～30分钟，得到块体的碳纤维/氧化硅陶瓷复合材料。本发明克服了传统方法中异质相间主要依靠物理粘附而难以有效提高材料强度与韧性的弊端，显著改善了氧化硅与碳纤维的界面结合能力，提高了合成试样的强度与韧性。
High-temperature and high-pressure preparation method of nickel-plated carbon fiber/silicon oxide composite material
一种镀镍碳纤维/氧化硅复合材料的高温高压制备方法
LI ZHIHUI (Autor:in) / GUO YU (Autor:in) / FU YUBO (Autor:in) / DONG JUNYAN (Autor:in) / DONG SHUSHAN (Autor:in) / TAO QIANG (Autor:in) / ZHU PINWEN (Autor:in)
02.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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