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powder. Fig.2 and Fig.3 reveal the relationship between carbon potential and hardness, flowability and tap density of cast tungsten carbide powders. It can be found that flowability, tap density...Article ID: 1003-6326(2005)02-0270-05 Influence of fabricating process on microstructure and properties of spheroidal cast tungsten carbide powder DAI Yu(戴 煜)1, 2, TAN Xing-long(谭兴龙)1, LI Yu......
Preparation of spherical tungsten and titanium powders by RF induction plasma processingJian-Jun Wang1,Jun-Jie Hao1,Zhi-Meng Guo1,Yu-Ming Wang21. Institute for Advanced Materials and Technology... and titanium powders were prepared by radio frequency inductively coupled plasma torch with irregular shaped tungsten and titanium hydride(Ti H2) powders, respectively. The effect of the feed rate......
of nanocrystalline WC-Co powders [J]. International Journal of Refractory Metals & Hard Materials, 2005, 23: 249-257. [11] Yamada K. Crystal growth of tungsten carbide plates by condensation of high... Tungsten carbide platelet-containing cemented carbide with yttrium containing dispersed phase ZHANG Li(张 立)1, CHEN Shu(陈 述)2, WANG Yuan-jie(王元杰)1, YU Xian-wang(余贤旺)1, XIONG Xiang-jun(熊湘君)1 1......
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Preparation of Core-Shell Structured Cobalt Coated Tungsten Carbide Composite Powders by Intermittent ElectrodepositionHuan Zhong1,Yuejun Ouyang1,2,Gang Yu1,Bonian Hu3,Dalong Yan11. State Key.... Department of Materials and Chemical Engineering, Hunan Institute of Technology摘 要:Core-shell structured cobalt coated tungsten carbide(WC/Co) composite......
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with the other alloys. It can be concluded that the optimal sintering temperature of 90W-4Ni-2Fe-3.8Mo-0.2RE pre-alloyed powders after 15 h mechanical alloying is 1 300-1 350 ℃. Key words: tungsten based high..., deoxidization tungsten(W) powders, hydroxy iron(Fe) powders, high pure molybdenum(Mo) and RE (rare earth element La2O3+ Y2O3) powders were used as raw materials. They were then ball milled in protective argon......
in the experiment were commercial normal electrolytic copper powders, which was produced by Gripm Advanced Materials Co. Ltd. The method used was a dry impact blending method particles composite system, which... functions. It was operated at rotation speed of 2 000-8 000 r/min at temperature range of 45-75 ℃. Raw electrolytic copper powders were put into the equipment in 200 g batches. The treatment......
Preparation of ultrafine Co3O4 powders by continuous and controllable combustion synthesis WU Chong-hu1, 2 1. China National R&D Center for Tungsten Technology, Xiamen Tungsten Co., Ltd...-controlled combustion synthesis (CDCCS) was developed based on the continuous fluidization and combustion synthesis technologies. CoC2O4·2H2O powders were transformed to Co3O4 in a gas-solid fluid bed......
">Scandia doped tungsten powders were prepared by spray drying combined with two-step hydrogen reduction.The particle size of doped tungsten powder,powder morphology and doped tungsten matrix were... on the property of tungsten powder were studied by the temperature programmed reduction.The experimental results showed that the pre-cursor powders prepared by spray drying had spherical shape.The addition......
