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Heat Treatment of WC-Co Hardmetals and Transformation Temperature of Cobalt Phase赖和怡,杨金辉摘 要:<正> The Present work has found that the transverse rupture stren -gth of WC-Co hardmetals can be improved by queuching heat treatment. The increment of transverse rupture strength (4TRS) was dependent on the cobalt content of hardmetal. The higher......
, Co can be separated with Mn from the solution in Me-OH--S2- system when pH<6. The results provide a theoretical guidance for cobalt and nickel recovery from secondary resources and the preparation of cobalt and nickel products.Key words:complexation-precipitation system; thermodynamics; secondary resources of cobalt and nickel......
has many advantages, such as continuation, efficiency, energy conservation and environmental friendly and has been used in mass production. Key words: combustion synthesis; fluidization; cobalt oxide... materials[2-3], catalysts[4], etc. The spherical or quasi-spherical ultrafine cobalt powders (diameter size ≤0.8 μm) reduced from ultrafine Co3O4 powders are the key raw materials to produce ultrafine......
earth substitution; cobalt oxide; rare earths; [全文内容正在添加中] ......
-silicon cobalt white alloy XU Zhi-feng1, YUE Ri-hui1, YAN Kang1, WANG Cheng-yan2 (1. School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China; 2.Beijing General Research Institute of Mining and Metallurgy, Beijing 102206, China) Abstract: The refractory high-silicon cobalt white alloy is difficult to be leached directly......
, MASHIATULLAH A, LIU J, HOU M D, SUN Y M, DUAN J L, YAO H J, MO D, CHEN Y F. Structural analysis of nickel doped cobalt ferrite nanoparticles prepared by coprecipitation route[J]. Physica B, 2009, 404...] SINGHAL S, SINGH J, BARTHWAL S K, CHANDRA K. Preparation and characterization of nanosize nickel-substituted cobalt ferrites (Co1-xNixFe2O4)[J]. Journal of Solid State Chemistry, 2005, 178: 3183-3189......
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Trans. Nonferrous Met. Soc. China 24(2014) 1918-1927 Extraction of arsenic from arsenic-containing cobalt and nickel slag and preparation of arsenic-bearing compounds Guo-lin YU1,2, Ying ZHANG2, Shi...: The arsenic extraction from the arsenic-containing cobalt and nickel slag, which came from the purification process of zinc sulfate solution in a zinc smelting factory, was investigated......
; Abstract: Co3O4/graphite composites were synthesized by precipitation of cobalt oxalate on the surface of graphite... decreases with increasing the graphite content. Key words: composite materials; cobalt oxides; lithium ion batteries; graphite; electrochemical properties; precipitation ......
; 文献标志码:A 文章编号:1672-7207(2012)08-2909-07 Cobalt cementation by zinc dust in presence of copper,cadmium and antimony additives HU Gen-huo, LIU Zhi-hong, LIU Zhi-yong, LI Yu-hu, LI Qi-hou (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The cementation of cobalt......
