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Effect of nanofibers at surface of carbon fibers on microstructure of carbon/carbon composites during chemical vapor infiltrationXIAO Peng(肖鹏), CHEN Jie(陈洁), XU Xian-feng(徐先锋), LU Xue-feng(卢雪峰) (State Key Laboratory of Powder Metallurgy (Central South University), Changsha 410083, China)Abstract:Before densification by chemical vapor infiltration, carbon or SiC nanofibers were grown......
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; Synthesis of Li2Fe0.9Mn0.1SiO4/C composites using glucose as carbon source PENG... as carbon source. The samples were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM) and electrochemical measurements. All Li2Fe0.9Mn0.1SiO4/C composites......
EFFECTS OF CARBON CONTENT AND ROLLING PROCESSING ON RETAINED AUSTENITE FOR HOT-ROLLED TRIP STEELS A.M.Guo1,S.K.Pu1,Y.Chen2,X.Chen1,B.F.Xu2,Z.X.Yuan2,P.H.Li1 (1.Technical Center of Wuhan Iron... rolling temperature and coiling temperature on retained austen-ire were studied for hot-rolled transformation induced plasticity (TRIP) steels withdifferent carbon content. The experimental results......
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PARAMETRIC STUDY FOR THE PREPARATION OF ALIGNED SINGLE-WALLED CARBON NANOTUBES BY ANODE-ARC DISCHARGE METHOD G.J.Xu1,Z.Q. Wei2,Q.Wang2,J.F. Dai2,W.X.Li2 (1.State Key Laboratory of New Nonferrous... of Technology, Lanzhou 730050, China) Abstract:Well aligned quasi-straight single-walled carbon nanotubes (SWCNTs) and straight SWCNTs bundle have been prepared in large scale by anode-arc vaporization......
J. Cent. South Univ. (2019) 26: 560-566 DOI: https://doi.org/10.1007/s11771-019-4027-5 Super long-range diffusion of carbon during proeutectoid ferrite transformation ZHANG Suo-quan(张所全)1, 2, JIAO..., NO-7491 Trondheim, Norway Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: In order to explore the possible diffusion distance of carbon during......
体经800 ℃还原1 h后,样品中的W2C和WC完全消失,得到纯净的W粉,而且W的衍射峰有明显的宽化,说明此时W粉的粒度有所细化. 图1 W,C摩尔比为1:2.6的前驱体及前驱体在不同温度下还原1 h后产物的XRD谱 Fig. 1 XRD patterns of precursor with tungsten carbon molar ratio of 1:2.6 and products prepared by carbon assisting hydrogen reduction of precursor at different temperatures for 1 h 偏钨酸铵粉末与葡萄糖以W,C摩尔比1:2.6的比例混合煅烧后制备的前驱体以及前驱体分别在700,750,800 ℃下还原1 h后产物的SEM像如图2所示.由图2(a)中可以看出,前驱体粉末呈......
A novel method to produce potassium chromate from carbon ferrochromeHU Guo-rong(胡国荣), WANG Jia-liang(王家良), PENG Zhong-dong(彭忠东), DU Ke(杜柯) (School of Metallurgy and Environment, Central South University, Changsha 410083, China)Abstract:The oxidizing roasting of carbon ferrochrome in the presence of potassium carbonate and air was investigated. The effects of reaction temperature, reaction time......
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