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Copper-Coated Tungsten Powders with Core-Shell Structure Prepared by Intermittent Electrodeposition
Wu Peng1,2,3; Li Jianqiang1,2; Zhou Zhangjian3; Ma Bingqian1,2; Liu Pengjie3; Wang Man3
2015-11-01
发表期刊RARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
卷号44期号:S1页码:47-51
摘要Due to low coefficient of thermal expansion and high thermal conductivity, tungsten-copper composites can effectively transmit heat generated by the integrated circuit, thus prolonging the life of the circuit. Copper-coated tungsten composite powders help to improve the overall performance of tungsten-copper composites. Copper-coated tungsten powders were prepared by intermittent electrodeposition. The effects of different plating time on composite powder surface morphology, thickness, copper content and copper plating deposition rate were investigated, and simultaneously the formation mechanism of copper plating layer was also studied. The analysis results show that tungsten copper composite powders prepared by intermittent electrodepositon are the core-shell structure of copper-coated tungsten, the copper coating is uniform, dense, and the surface roughness is small; in the conditions of current density 1.7 A/dm(2), the average coating thickness is 0.69 and 1.96 mu m, copper content 9.97% and 23.76%, deposition rate 36.91 and 41.34 mg.min(-1) when electroplated for 30 and 75 min, respectively. Coating thickness and deposition rate increase with the increase of plating time; the copper plating layer nucleation and growth follow the Volmer-Weber mode.
关键词Intermittent Electrodeposition Copper-coated Tungsten Core-shell Structure Volmer-weber Mode
文章类型Article
WOS标题词Science & Technology ; Technology
收录类别SCI
语种英语
关键词[WOS]COMPOSITES
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000367214200013
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20207
专题研究所(批量导入)
作者单位1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Sci & Technol Beijing, Beijing 100083, Peoples R China
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GB/T 7714
Wu Peng,Li Jianqiang,Zhou Zhangjian,et al. Copper-Coated Tungsten Powders with Core-Shell Structure Prepared by Intermittent Electrodeposition[J]. RARE METAL MATERIALS AND ENGINEERING,2015,44(S1):47-51.
APA Wu Peng,Li Jianqiang,Zhou Zhangjian,Ma Bingqian,Liu Pengjie,&Wang Man.(2015).Copper-Coated Tungsten Powders with Core-Shell Structure Prepared by Intermittent Electrodeposition.RARE METAL MATERIALS AND ENGINEERING,44(S1),47-51.
MLA Wu Peng,et al."Copper-Coated Tungsten Powders with Core-Shell Structure Prepared by Intermittent Electrodeposition".RARE METAL MATERIALS AND ENGINEERING 44.S1(2015):47-51.
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