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球磨時(shí)間對(duì)石墨烯/銅材料組織和性能的影響
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云南省昆明市昆明理工大學(xué)材料科學(xué)與工程學(xué)院,云南省昆明市昆明理工大學(xué)材料科學(xué)與工程學(xué)院,云南省昆明市昆明理工大學(xué)材料科學(xué)與工程學(xué)院,云南省昆明市昆明理工大學(xué)材料科學(xué)與工程學(xué)院,云南省機(jī)械研究設(shè)計(jì)院,云南省昆明市昆明理工大學(xué)材料科學(xué)與工程學(xué)院,云南省昆明市昆明理工大學(xué)材料科學(xué)與工程學(xué)院

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TG113

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國(guó)家教育部博士點(diǎn)基金;高等學(xué)校博士學(xué)科點(diǎn)專(zhuān)項(xiàng)科研基金;昆明理工大學(xué)先進(jìn)電池膜電極材料方向團(tuán)隊(duì)


Study on the Effect of Ball-milling Time on Microstructure and Mechanical Properties of Graphene/Cooper Composite Materials
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College of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China,College of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China,College of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China,College of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China,Yunnan Machinery Research and Design Institute,College of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China,College of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China

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    摘要:

    采用機(jī)械球磨濕磨方法在不同球磨時(shí)間下將0.5wt%石墨烯與納米銅粉混合，然后通過(guò)等離子燒結(jié)（SPS）方法制備石墨烯/銅（G/Cu）復(fù)合材料。利用SEM、XRD等對(duì)球磨過(guò)程中復(fù)合顆粒形貌及其組織結(jié)構(gòu)變化規(guī)律進(jìn)行分析，發(fā)現(xiàn)當(dāng)球磨時(shí)間的延長(zhǎng)至8h，石墨烯在銅基體中有更好的結(jié)合和分布，性能改善相對(duì)最佳，G/Cu的拉伸屈服強(qiáng)度為183MPa，較純銅提高52.5%；壓縮屈服強(qiáng)度也由純銅的150MPa提高到了365MPa，提升近1.4倍；均值硬度也提高到了135HV，導(dǎo)電率IACS達(dá)到了66.5%，綜合性能得到明顯提高。

    Abstract:

    The nano-cooper powder and graphene are mixed by the way of mechanical wet ball-milling. Then the graphene/cooper (G/Cu) composite materials is prepared by the Spark Plasma Sintering method(SPS). The microstructure and organization structure of graphene and cooper power are analyzed by means of SEM, XRD and other test methods to explore the relationship between the variation of graphene and cooper power and the ball-milling process. It has found that when the ball-milling time increased to 8h, the grapnene nanoplates have a better combination and distribution on cooper substrate. The improvement of performance is relatively best. The tensile yield strength of the G/Cu composite is 183MPa, increased by 52.5%compared with Cu matrix; the compres yield strength is improve more nearly 1.4 times from 150MPa to 365Mpa; the hardness is also increased to 135HV; the conductivity IACS of the composites reaches 65.5%. The comprehensive performance increased significantly.

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凌自成,閆翠霞,史慶南,馮中學(xué),曲永冬,李濤,楊應(yīng)湘.球磨時(shí)間對(duì)石墨烯/銅材料組織和性能的影響[J].稀有金屬材料與工程,2017,46(1):207~212.[Ling Zicheng, Yan Cuixia, Shi Qingnan, Feng Zhongxue, Qv Yongdong, Li Tao, Yang Yingxiang. Study on the Effect of Ball-milling Time on Microstructure and Mechanical Properties of Graphene/Cooper Composite Materials[J]. Rare Metal Materials and Engineering,2017,46(1):207~212.]
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  • 收稿日期:2014-10-16
  • 最后修改日期:2015-05-18
  • 錄用日期:2015-08-11
  • 在線發(fā)布日期: 2017-03-16
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