Temperature-dependent microstructure and phase evolution of iron-containing SiC fibers

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	Temperature-dependent microstructure and phase evolution of iron-containing SiC fibers
	Tang, Xueyu ; Chen, Lifu ; Cheng, Xuan ; Gu, Hui ; Tang XY(唐学原) ; Chen LF(陈立富) ; Cheng X(程璇)
刊名	http://dx.doi.org/10.1016/j.ceramint.2014.06.011
	2014
关键词	Fibers Iron Microstructure Nanoparticles Oxygen Polysilanes Sintering
英文摘要	Oxygen-free silicon carbide (SiC) fibers were prepared by using polycarbosilane and iron pentacarbonyl [Fe(CO)5] as the raw material. The developments in microstructure and phase of the fibers upon the selected heat-treated temperatures were studied by XRD, FTIR, DTA-TG, SEM, and TEM techniques. The results revealed that the sintering of SiC fibers was promoted by introducing small amount of Fe. The iron-containing nanoparticles existed in the form of α-Fe in the SiC fibers pyrolyzed below 1000 °C. Above 1200 °C, most of the iron-containing nanoparticles existed in the form of Fe3Si. The SiC grains became obviously coarse above 1600 °C due to the decomposition of SiCxOy. After being sintered at 1800 °C, the final iron-containing SiC fibers were oxygen-free and remained dense. ? 2014 Elsevier Ltd and Techna Group S.r.l.
语种	英语
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87422]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	Tang, Xueyu,Chen, Lifu,Cheng, Xuan,et al. Temperature-dependent microstructure and phase evolution of iron-containing SiC fibers[J]. http://dx.doi.org/10.1016/j.ceramint.2014.06.011,2014.
APA	Tang, Xueyu.,Chen, Lifu.,Cheng, Xuan.,Gu, Hui.,唐学原.,...&程璇.(2014).Temperature-dependent microstructure and phase evolution of iron-containing SiC fibers.http://dx.doi.org/10.1016/j.ceramint.2014.06.011.
MLA	Tang, Xueyu,et al."Temperature-dependent microstructure and phase evolution of iron-containing SiC fibers".http://dx.doi.org/10.1016/j.ceramint.2014.06.011 (2014).