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Preparation and Characterization of Amorphous W–B–C Alloy and Solid Solutions of C in Tungsten BoridesHao Sun1,2,Suo-Zhu Bai3,Dan-Dan Yao4,Bin Yao1,2,Zhan-Hui Ding2,Yong-Feng Li21. State Key Lab... and Chemical Engineering College, Inner Mongolia University for the Nationalities4. Liaoning Academy of Safety Science摘 要:Mixtures of W and B13 C2 powders......
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copper (Cu) coating on tungsten powders method requiring no surface treatment or stabilizing agent and using glyoxylic acid (C2H2O3) as a reducing agent was reported. The effects of copper sulfate...Fabrication of W@Cu Composite Powders by Direct Electroless Plating Using a Dripping Method刘树龙1,2,YU Kan1,沈强1,LI Meijuan1,CHEN Wenshu1,LUO Guoqiang1,ZHANG Lianmeng11. Sate Key Laboratory of Advanced......
CRYSTALLIZATION OF SODIUM TUNGSTEN BRONZE USING ELECTROLYSIS WITHREVERSE CURRENT＋Huang Huan1; Yang Songqing1; Tang Shu2(1. Institute of Metallurgical Physicochemistry and Materials, Central South... tungsten bronze (Na_xWO_3) crystals were prepared from a molten mixture of sodium tungstate (Na_2WO_4 ) and tungstic trioxide (WO_3) at 800℃. Crystal structure, lattice parameter, and sodium content......
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Trans. Nonferrous Met. Soc. China 30(2020) 1697-1706 Synthesis of high-purity ultrafine tungsten and tungsten carbide powders Kai-fei WANG, Guo-hua ZHANG State Key Laboratory of Advanced Metallurgy... used in the fields of aerospace, military, metallurgy, cutting, mining tools and drilling tools etc [7-14]. Ultrafine tungsten and tungsten carbide powders have many potential applications compared......
-MgO powders prepared by high-energy ball milling WU Cai-xia1, 2, ZHU Shi-gen1, 2, MA Jun1, 2, ZHANG Mei-lin1 (1. College of Mechanical Engineering, Donghua University, Shanghai 201620, China; 2. College of Materials Science and Engineering, Donghua University, Shanghai 201620, China) Abstract: The synthesis of nanocomposite WC-MgO powders was investigated by high-energy ball milling......
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: The microstructure and properties of the 93W-4Ni-2Co-1Fe (mass fraction, %) tungsten heavy alloys prepared by mechanical alloying and electric current activated sintering from mixed elemental powders were... grains and homogeneous microstructure[11-12]. It has also been used to fabricate ultra-fine grained tungsten powders and consequently to enhance the properties of sintered materials. Recently, a novel......
760 ℃,60 min条件下不同还原方式所得W粉的HRTEM像 Fig. 6 HRTEM images of tungsten powders reduced at 760 ℃ for 60 min 图6所示为760 ℃还原60 min后不同还原方式完全还原W粉颗粒的HRTEM像.从图6 (b)中可以看出,在普通氢还原W粉颗粒表面,存在大量层状台阶结构,台阶层厚为5~8原子... through the circulatory oxidization-reduction method[J]. Rare Metal Materials and Engineering, 2010, 39(S1): 468-471. [4] WU C H. Preparation of ultrafine tungsten powders by in-suit reduction......
