标题：Preparation and characterization of t-BN coatings on the surface of carbon fibers
作者：Fu, Shanlong; Wang, Yanxiang; Niu, Fangxu; Qu, Ce; Mao, Yanpeng; Zhuang, Guangshan
作者机构：[Wang, Yanxiang] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan, Shandong, Peoples R China.; [Fu, Shanlong; Wang, 更多
通讯作者：Wang, YX;Fu, SL;Wang, YX;Zhuang, GS
通讯作者地址：[Wang, YX]Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan, Shandong, Peoples R China;[Fu, SL; Wang, YX; Zhuang, GS]Sh 更多
关键词：BN coatings; carbon fibers; dipping; oxidation property
摘要：Turbostratic boron nitride (t-BN) coatings were successfully synthesized on the surface of carbon fibers by dip-coating method. Boric acid and urea were used as boron source and nitrogen source separately and the nitridation process was carried out at 850 degrees C for 4h under the protection of N-2. Dipping times were considered as variables to find out optimum amounts. The structure, chemical composition, phase and properties of BN coated carbon fibers were characterized. Results showed that continuous and uniform coatings were prepared after three times dipping and adhered well with carbon fibers. The coatings were mainly composed of the phase of t-BN. The oxidation property and high temperature resistant performance of the BN modified carbon fibers were greatly improved.