Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Continuous preparation method of SiC fiber surface BN coating
The invention discloses a method for continuously preparing a BN (boron nitride) coating on the surface of SiC fiber, which comprises the following steps of: firstly, arranging a carbon coating on the surface of the SiC fiber in advance, then putting the SiC fiber in continuous equipment, releasing the SiC fiber from a wire releasing device, soaking the SiC fiber in a boron-containing solution to obtain the SiC fiber wrapped by a boron-containing film, and finally, drying the SiC fiber to obtain the BN coating on the surface of the SiC fiber. Then the SiC fiber wrapped by the boron-containing film continues to pass through the high-temperature furnace to form a BN coating on the surface of the SiC fiber, and mixed atmosphere of nitrogen and ammonia gas is introduced into the high-temperature furnace; according to the method, the temperature for preparing the BN coating on the SiC fiber is high, the crystallinity of the coating is good, the stability is high, and the fiber can be effectively protected in the preparation process of the composite material.
本发明公开了一种连续制备SiC纤维表面BN涂层的方法，先于SiC纤维表面预先设置碳涂层，然后再置于连续化的设备中，将SiC纤维由放丝装置中放出，先浸润在含硼的溶液中获得被含硼薄膜包裹的SiC纤维，然后将被含硼薄膜包裹的SiC纤维继续经过高温炉于SiC纤维表面形成BN涂层，所述高温炉中通入氮气和氨气的混合气氛；再经收丝装置收丝，本发明在SiC纤维上制备BN涂层的温度高，涂层结晶性好，稳定性高，在复合材料的制备过程中可有效保护纤维。
Continuous preparation method of SiC fiber surface BN coating
The invention discloses a method for continuously preparing a BN (boron nitride) coating on the surface of SiC fiber, which comprises the following steps of: firstly, arranging a carbon coating on the surface of the SiC fiber in advance, then putting the SiC fiber in continuous equipment, releasing the SiC fiber from a wire releasing device, soaking the SiC fiber in a boron-containing solution to obtain the SiC fiber wrapped by a boron-containing film, and finally, drying the SiC fiber to obtain the BN coating on the surface of the SiC fiber. Then the SiC fiber wrapped by the boron-containing film continues to pass through the high-temperature furnace to form a BN coating on the surface of the SiC fiber, and mixed atmosphere of nitrogen and ammonia gas is introduced into the high-temperature furnace; according to the method, the temperature for preparing the BN coating on the SiC fiber is high, the crystallinity of the coating is good, the stability is high, and the fiber can be effectively protected in the preparation process of the composite material.
本发明公开了一种连续制备SiC纤维表面BN涂层的方法，先于SiC纤维表面预先设置碳涂层，然后再置于连续化的设备中，将SiC纤维由放丝装置中放出，先浸润在含硼的溶液中获得被含硼薄膜包裹的SiC纤维，然后将被含硼薄膜包裹的SiC纤维继续经过高温炉于SiC纤维表面形成BN涂层，所述高温炉中通入氮气和氨气的混合气氛；再经收丝装置收丝，本发明在SiC纤维上制备BN涂层的温度高，涂层结晶性好，稳定性高，在复合材料的制备过程中可有效保护纤维。
Continuous preparation method of SiC fiber surface BN coating
一种SiC纤维表面BN涂层的连续制备方法
HUANG XIAOZHONG (Autor:in) / YI JUN (Autor:in) / WU LICONG (Autor:in) / XIAO YIFAN (Autor:in)
27.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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