共搜索到11762条信息,每页显示10条信息,共1177页。用时:0小时0分0秒759毫秒
料.同时,较低的温度使得粉尘于非熔融状态下还原,固态还原产物中Fe的金属化率可达90%,可直接经物理分离获得固态高纯铁. 关键词:冶金粉尘;非熔态还原;Zn富集 中图分类号:TF813 文献标志码:A Separating and enriching zinc from metallurgical dust at low... steelmaking enterprises were systematically studied. A new process for separating and enriching zinc from metallurgical dust at low temperature was developed. Based on the volatilized thermodynamics......
PREPARATION AND CHARACTERIZATION OF POLY-CRYSTALLINE SILICON THIN FILM H.Shen1,Z.Y.Liu2,Y.F.Hu2,L.S.Wen2 (1.Guangzhou Institute of Energy Conversion, The Chinese Academy of Sciences, Guangzhou 510070, China;2.College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China) Abstract:Poly-crystalline silicon thin film has big potential of reducing the cost......
Article ID: 1003-6326(2005)03-0510-05 Preparation and properties of continuous Al-containing silicon carbide fibers YU Yu-xi(余煜玺), LI Xiao-dong(李效东), CAO Feng(曹 峰), WANG Ying-de(王应德... resistance than the Tyranno SA fibers. Key words: continuous silicon carbide fibers; polyaluminocarbosilane; polymer pyrolysis CLC number: TQ343.6  ......
Balanced solubility product and enthalpies of formation of Nb compounds in 0.09 % oriented silicon steelHui Li1,Yun-Li Feng2,Dan Zhang2,Meng Song2,Da-Qiang Cang11. School of Metallurgical... and enthalpy of formation for NbC0.75 , NbC0.85 , NbC0.88 , NbC and NbN in oriented silicon steels were calculated and compared qualitatively. Meanwhile, the mixing enthalpies of these five Nb compounds......
......
thermal stability than the SiC(OY) fibres. Key words: polycarbosilane; yttrium; silicon carbide; fibre 1 Introduction The pyrolysis of polycarbosilane (PCS) used for the preparation of silicon... microscopy (SEM), Raman spectroscopy and high resolution transmission electron microscopy (HRTEM). 2 Experimental 2.1 Materials Y(AcAc)3 was obtained from Aldrich (reagent grade of 99%). The PCS......
Preparation and dielectric properties of porous silicon nitride ceramics LI Jun-qi(李军奇), LUO Fa(罗 发), ZHU Dong-mei(朱冬梅), ZHOU Wan-cheng(周万城) State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China Received 10 April 2006; accepted 25 April 2006 Abstract: Porous silicon nitride ceramics with difference volume fractions......
Selective growth of carbon nanotube on silicon substrates ZOU Xiao-ping(邹小平) 1,2,3,4, H. ABE3, T. SHIMIZU 3, A. ANDO5, H. TOKUMOTO 3,6, ZHU Shen-ming(朱申敏)4, ZHOU Hao-shen(周豪慎)4  ... 25 April 2006 Abstract: The carbon nanotube (CNT) growth of iron oxide-deposited trench-patterns and the locally-ordered CNT arrays on silicon substrate were achieved by simple thermal chemical......
Electrochemical behavior and polishing properties of silicon wafer in alkaline slurry with abrasive CeO2 SONG Xiao-lan(宋晓岚)1, XU Da-yu(徐大余)1, ZHANG Xiao-wei(张晓伟)1, SHI Xun-da(史训达)2, JIANG Nan(江 楠)1, QIU Guan-zhou(邱冠周)1 1. Department of Inorganic Materials, School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China; 2. Silicon Wafer Manufacture......
on column leaching of copper oxide ore in Yangla Copper Mine[J]. Mining and Metallurgical Engineering, 2011, 31(2): 79-82. [4] LIU Zhixiong, YIN Zhoulan, HU Huiping, et al. Leaching kinetics of low-grade...; 文章编号:1672-7207(2016)10-3289-06 Experimental study on chemical mutation of ammonia-producing bacteria and bioleaching of low grade copper ore HU Kaijian, WU Aixiang, WANG Hongjiang, WANG......