共搜索到3580条信息,每页显示10条信息,共358页。用时:0小时0分0秒281毫秒
tungsten carbide and nano yttrium oxide as starting materials. By comparing the microstructures of the alloy prepared by hot-press at the temperature below the eutectic melting temperature..., and inhomogeneous grain growth which is a very vexing problem in cemented carbide with ultrafine or nano tungsten carbide as starting material during the early-stage densification was suppressed by the addition......
......
......
Research on Laser Cladded Nickel Based Nanometer Tungsten Carbide Composite Coating DAI Jian-qiang1,ZOU Chang-gu1,YAN Min-jie1,XI Wen-long1,ZHANG Guang-jun1,GE Da-fang1,WANG Hui-Ping1 (1.Shanghai... of nanometer WC/Co introduced into the coating plays an important role in the laser cladding processes. 关键词:Laser cladding; nanometer granulation; nickel based tungsten carbide coating......
and with coarser structure and relatively lower hardness in the inner part of the powder. Fig.11 Nano-structure formed on cast tungsten carbide powder surface 4 CONCLUSIONS Spheroidal cast...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......
......
Electrocatalytic Activity of Tungsten Trioxide Microspheres, Tungsten Carbide Microspheres and Multi-walled Carbon Nanotube-tungsten Carbide Composites陆洪智Faculty of Engineering, China University of Geosciences摘 要:Tungsten trioxide micropheres were prepared by spray pyrolysis, and tungsten carbide microspheres were produced by spray pyrolysis-low......
......
temperature.`` Key words:tungsten powder; methane; induction plasma; tungsten carbide; [全文内容正在添加中] ...INDUCTION PLASMA REACTIVE DEPOSITION OF TUNGSTENCARBIDE FROM TUNGSTEN METAL POWDER M.I.Boulos1,X.L.Jiang2 (1.Department of Chemical Engineering, University of Sherbrooke, Sherbrooke, J1K 2R1......
Comparative study on discharge conditions in micro-hole electrical discharge machining of tungsten carbide (WC-Co) material Hyun-Seok TAK1, Chang-Seung HA2, Dong-Hyun KIM2, Ho-Jun LEE2.... For machining difficult-to-cut materials, such as tungsten carbide, micro-electrical discharge machining(EDM) is one of the most effective methods for making holes because the hardness is not a dominant......