Synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene

Abstract Successful applications of WCu alloys in high voltage electrical switches require their high strength and excellent conductivity. Unfortunately, the strategies for increasing their strength such as doping with fine particles and alloying often significantly decrease their conductivity. In t...

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Autores principales:	Wenge Chen, Longlong Dong, Jiaojiao Wang, Ying Zuo, Shuxin Ren, Yongqing Fu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/38c33b28012842c6a8287d07c185782f
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spelling	oai:doaj.org-article:38c33b28012842c6a8287d07c185782f2021-12-02T15:06:10ZSynergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene10.1038/s41598-017-18114-22045-2322https://doaj.org/article/38c33b28012842c6a8287d07c185782f2017-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-18114-2https://doaj.org/toc/2045-2322Abstract Successful applications of WCu alloys in high voltage electrical switches require their high strength and excellent conductivity. Unfortunately, the strategies for increasing their strength such as doping with fine particles and alloying often significantly decrease their conductivity. In this paper, we developed a new pathway for fabricating WCu alloys using spark plasma infiltrating sintering of copper-coated graphene (Cu@Gr) composite powders. Cu@Gr was found to partially prevent the formation of WC after sintering, and graphene was uniformly distributed on the surfaces of network Cu phases. Electrical conductivity of 38.512 M·S/m, thermal conductivity of 264 W·m−1·K−1 and microhardness of 278 HV were achieved for the sintered WCu composites doped with only 0.8 wt.% Cu@Gr powders, which showed 95.3%, 24.3%, 28% enhancement compared with those from the conventional sintering using the undoped WCu powders.Wenge ChenLonglong DongJiaojiao WangYing ZuoShuxin RenYongqing FuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wenge Chen Longlong Dong Jiaojiao Wang Ying Zuo Shuxin Ren Yongqing Fu Synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene
description	Abstract Successful applications of WCu alloys in high voltage electrical switches require their high strength and excellent conductivity. Unfortunately, the strategies for increasing their strength such as doping with fine particles and alloying often significantly decrease their conductivity. In this paper, we developed a new pathway for fabricating WCu alloys using spark plasma infiltrating sintering of copper-coated graphene (Cu@Gr) composite powders. Cu@Gr was found to partially prevent the formation of WC after sintering, and graphene was uniformly distributed on the surfaces of network Cu phases. Electrical conductivity of 38.512 M·S/m, thermal conductivity of 264 W·m−1·K−1 and microhardness of 278 HV were achieved for the sintered WCu composites doped with only 0.8 wt.% Cu@Gr powders, which showed 95.3%, 24.3%, 28% enhancement compared with those from the conventional sintering using the undoped WCu powders.
format	article
author	Wenge Chen Longlong Dong Jiaojiao Wang Ying Zuo Shuxin Ren Yongqing Fu
author_facet	Wenge Chen Longlong Dong Jiaojiao Wang Ying Zuo Shuxin Ren Yongqing Fu
author_sort	Wenge Chen
title	Synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene
title_short	Synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene
title_full	Synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene
title_fullStr	Synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene
title_full_unstemmed	Synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene
title_sort	synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/38c33b28012842c6a8287d07c185782f
work_keys_str_mv	AT wengechen synergisticenhancingeffectformechanicalandelectricalpropertiesoftungstencoppercompositesusingsparkplasmainfiltratingsinteringofcoppercoatedgraphene AT longlongdong synergisticenhancingeffectformechanicalandelectricalpropertiesoftungstencoppercompositesusingsparkplasmainfiltratingsinteringofcoppercoatedgraphene AT jiaojiaowang synergisticenhancingeffectformechanicalandelectricalpropertiesoftungstencoppercompositesusingsparkplasmainfiltratingsinteringofcoppercoatedgraphene AT yingzuo synergisticenhancingeffectformechanicalandelectricalpropertiesoftungstencoppercompositesusingsparkplasmainfiltratingsinteringofcoppercoatedgraphene AT shuxinren synergisticenhancingeffectformechanicalandelectricalpropertiesoftungstencoppercompositesusingsparkplasmainfiltratingsinteringofcoppercoatedgraphene AT yongqingfu synergisticenhancingeffectformechanicalandelectricalpropertiesoftungstencoppercompositesusingsparkplasmainfiltratingsinteringofcoppercoatedgraphene
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Synergistic enhancing effect for mechanical and electrical properties of tungsten copper composites using spark plasma infiltrating sintering of copper-coated graphene

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