碳化锆/锆涂层炭纤维的制备及其拉伸性能研究  

Preparation and mechanical properties of zirconium carbide/zirconium coated carbon fibers

作　　者：韩飞飞[1] 崔正威[1] 董志军[1] 黄庆[1] 李轩科[1] 

机构地区：[1]武汉科技大学化学工程与技术学院,湖北武汉430081

出　　处：《武汉科技大学学报》2012年第5期381-385,共5页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金资助项目(50972110);湖北省自然科学基金重点资助项目(2009CDA036)

摘　　要：在一定反应温度范围内以熔盐为介质通过炭纤维与金属锆反应制备出碳化锆/锆涂层炭纤维,并在反应温度为800℃时,研究反应时间对碳化锆/锆涂层炭纤维表面相组成、形貌及其拉伸性能的影响。结果表明,800℃可制备均匀致密的碳化锆/锆涂层;且随着反应时间的延长,碳化锆/锆涂层厚度略有增加;涂层后炭纤维的拉伸强度和拉伸模量比原炭纤维的相应值略有减小。The zirconium carbide/zirconium coated carbon fiber was prepared successfully in a certain reaction temperature by a molten salt reaction method.The influence of reaction time on the phase composition and surface morphology of coating and the tensile properties of composite material was studied.The results show that uniform and crack-free zirconium carbide/zirconium coating can be formed on the carbon fibers at 800 ℃,and its thickness increases slightly with increasing reaction time.In comparison to pristine carbon fibers,the tensile strength and the tensile modulus of coated carbon fibers decrease slightly.

关 键 词：熔盐 炭纤维 碳化锆/锆涂层 拉伸性能 

分 类 号：TB333[一般工业技术—材料科学与工程]