| Si-B-N-C陶瓷纤维的高温抗氧化性 |
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| 引用本文： | 张婧,唐彬彬,韩克清,刘振全,孙泽玉,余木火. Si-B-N-C陶瓷纤维的高温抗氧化性[J]. 合成纤维, 2012, 41(8): 14-17,26 |
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| 作者姓名： | 张婧 唐彬彬 韩克清 刘振全 孙泽玉 余木火 |
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| 作者单位： | 东华大学材料学院纤维材料改性国家重点实验室,上海,201620 |
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| 基金项目： | 国家自然科学基金项目(编号20704005和90916025) |
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| 摘 要： | 将Si-B-N-C陶瓷纤维在静置的空气氛围下分别于1300～1400℃区间内处理不同时间,通过扫描电镜(SEM)观察其微观结构的变化,用X-射线能量色散仪(EDS)、元素分析(EA)表征其截面及内部的元素分布和含量变化,并借助X-射线衍射光谱(XRD)表征氧化处理对纤维晶型变化的影响.结果表明:氧化后的纤维有明显的皮芯结构,并且皮层大致可分为3层,主要由B、N、Si、O元素组成;氧化保护层的存在,很好地阻隔了纤维核心层与外界空气的直接接触,从而保留了纤维本身优异的耐高温性能.
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| 关 键 词： | Si-B-N-C陶瓷纤维 高温抗氧化性 晶型结构 |
High-Temperature Oxidation of Si-B-N-C Ceramic Fiber |
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| ZHANG Jing,TANG Bin-bin,HAN Ke-qing,LIU Zhen-quan,SUN Ze-yu,YU Mu-huo. High-Temperature Oxidation of Si-B-N-C Ceramic Fiber[J]. Synthetic Fiber in China, 2012, 41(8): 14-17,26 |
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| Authors: | ZHANG Jing TANG Bin-bin HAN Ke-qing LIU Zhen-quan SUN Ze-yu YU Mu-huo |
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| Affiliation: | (College of Material Science and Engineering,State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Shanghai 201620,China) |
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| Abstract: | The Si-B-N-C ceramic fiber is treated in an insert air atmosphere with different time/temperature ranging from 1 300℃to 1 400℃.The microstructure is observed by SEM,and its element distribution is studied by EDS and EA.Meanwhile,crystallization is characterized through XRD analysis.The result showes obvious double-layer structure,which can be divided into 3 parts,mainly composed by B/N/Si/ 0.As the existence of protective layer,the fibers remain good high temperature performance by prevented from oxidation. |
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| Keywords: | Si-B-N-C ceramic fiber high temperature oxidation resistance microcrystalline structure |
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