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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
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume44Issue:S1Pages:47-51
AbstractDue 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.
KeywordIntermittent Electrodeposition Copper-coated Tungsten Core-shell Structure Volmer-weber Mode
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordCOMPOSITES
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000367214200013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20207
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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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间歇式电镀法制备核壳结构钨铜包覆粉体的研(2996KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
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