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of TiC on microstructure and properties of W-Cu composites GAO Yin, LIU Tao, HAN Yong, FAN Jing-lian, WANG Yuan-yuan, LEI Ting (State Key Laboratory of Powder Metallurgy, Central South University...%,抗拉强度从781 MPa提高到843 MPa；材料的断裂方式从沿晶断裂变为沿晶断裂和穿晶断裂混合的断裂方式.说明TiC的添加,起到良好的细晶强化和弥散强化的作用. 关键词:W-Cu复合材料；TiC；弥散强化；细晶强化 文章编号:1004-0609(2020)-06-1281-08 中图分类号:TG146.1 ......
Rapid synthesis of MoSi2-Si3N4 nanocomposite via reaction milling of Si and Mo powder mixtureMajid Abdellahi1,Alireza Amereh2,Hamed Bahmanpou3,Behzad Sharafati21. Department of Materials Engineering... 要:The nanocomposite of MoSi2-Si3N4(molybdenum disilicide-silicon nitride)was synthesized by reaction milling of the Mo and Si powder mixture.Changing......
. The particle size and microstructure of the milled powder were characterised. Effects of the particle size and agglomerate state of SiC, as well as the microstructure of Al/SiC nanocomposite were... now, this method has been used to produce nanocomposite in many systems such as Cu/ Al2O3[8], Al3Ti/Al2O3[9], Fe70Al30[10] and Al2O3/SiC[11]. In the preparation of nanocomposite, the main problem comes......
Arc erosion behavior of a nanocomposite W-Cu electrical contact materialCHEN Wenge,KANG Zhanying, SHEN Hongfang, and DING Bingjun School of Materials Science and Engineering, Xi’an University... of a nanocomposite W-Cu material under arc breakdown was investigated. The arc erosion rates of the material were determined, and the eroded surfaces and arc erosion mechanisms were studied by scanning electron......
. [3] KIM J W, CHUNG H S, LEE S H, OH K H, SHIM J H, CHO Y W. Mechanochemical synthesis of TiN/TiB2/Ti-silicide nanocomposite powders and their thermal stability[J]. Intermetallics, 2007, 15: 206?210...%Si-0.4wt%Mg/ SiC nanocomposite powders and bulk nanocomposites by high energy ball milling and powder metallurgy[J]. Current Applied Physics, 2004, 4(4): 175?178. [7] EL-ESKANDARANY M S. Fabrication......
Effect of porosity on hydrogenation kinetics of Mg-3Ni-2MnO2 nanocomposite powder reaction bed ZHANG Wen-cong(张文丛), SHI Fei(史 菲) School of Materials Science and Engineering, Harbin Institute... powder reaction bed depends strongly on the effect of heat transfer, mass transfer and intrinsic reaction together. The reaction bed with the porosity of 0.53 exhibits the largest hydrogenation rate......
SEM像及EDS分析 Fig. 2 SEM image(a) and EDS analysis((b), (c)) of W-Cu composite powder 表1 热挤压与溶渗工艺制备的W-30Cu触头材料的性能 Table 1 Properties of W-30Cu electrical contact material by hot... Jia-min. Mechanism of ultrafine/nano W-20Cu composite powder during liquid sintering[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(7): 1587-1593. [9] 朱 松, 范景莲, 刘 涛, 田家敏. 细晶W-Cu材料的导电性能[J]. 中国有......
): 30-34.JIANG Guo-sheng, WANG Zhi-fa, LIU Zheng-chun. Present status of the study on high-tungsten W-Cu composites[J]. Materials Science and Engineering of Powder Metallurgy, 1999, 4(1): 30-34. [3] 周武平. WCu复合材料在电...(11): 1806-1809. [9] 陈文革. W-Cu触头材料电寿命的研究[J]. 粉末冶金技术, 2003, 21(4): 225-226.CHEN Wen-ge. A study on electric-lifetime of W-Cu contacts materials[J]. Powder Metallurgy Technology, 2003, 21(4): 225-226......
Oxidation resistance of co-deposited Ni-SiC nanocomposite coating ZHOU Yue-bo(周月波), DING Yuan-zhu(丁元柱) Department of Materials Science and Engineering, Heilongjiang Institute of Science...) nanocomposite coating was prepared from a nickel sulfate bath by co-electrodeposition of Ni and SiC nanoparticles in an average size of 30 nm. The oxidation at 1 000 ℃ shows that the Ni-6.0%SiC......
-Cu and W-Cu. These kinds of alloys have many common properties, such as high density, small thermo-expansion coefficient, anti-cautery, anti-oxidation and the fine conductivity of electric and heat..., the feedstock consists of 53% (volume fraction) W-Ni-Fe powder with a D90 size of 5 μm and 47% (volume fraction) binder (mixture of polyethylene, wax and lubricant). Material data related to viscosity......
