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《Journal of Functional Materials》 2010-09
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Preparation of titanium carbide powders in high-frequency induction furnace

SEN Wei1,2,3, XU Bao-qiang1,2, YANG Bin1,2, SUN Hong-yan1,2, SONG Jian-xun1,2,WAN He-li1,2, DAI Yong-nian1,2(1.National Engineering Laboratory for Vacuum Metallurgy, Kunming 650093, China;2. Key Laboratory of Vacuum Metallurgy for Nonferrous Metal of Yunnan Province, Kunming 650093, China;3. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China)  
Formation of ultrafine TiC powders by carbothermal reduction of titania and charcoal in high-frequency induction furnace was investigated by XRD, SEM/EDS, atomic Absorption spectrometer, XRF as well as laser particle sizer. The result indicates that ultrafine TiC powders with low impurities was prepared at temperature range 1490-1510℃ for a short time. The surface of TiC particles is homogeneous and loose agglomeration while the grain size (D50) is about 1-10μm. Lattice parameter calculation indicates that sub-stoichiometric TiCx(x1) should exist in TiC powders when n(TiO2)∶n(C)=1∶3. But stoichiometric TiC1.0 was prepared when n(TiO2)∶n(C)=1∶4.
【Fund】: 国家自然科学基金-云南联合基金资助项目(u0837604);; 高等学校博士学科点专项科研基金资助项目(20095314110003)
【CateGory Index】: TB383.3
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