球磨法制备石墨烯包覆铝复合粉体及其特性研究

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英文篇名：Study on Synthesis and Performance of Graphene-coated Aluminum Composite Powder by Ball Grinding Method 作者：高一波 ; 程少磊 ; 姬秀芳 ; 孙凤儿 ; 刘和平 ; 刘斌 英文作者：GAO Yibo;CHENG Shaolei;JI Xiufang;SUN Feng'er;LIU Heping;LIU Bin;School of Material Science and Engineering, North University of China; 关键词：石墨烯 ; 球料比 ; 球磨 ; 复合粉体 英文关键词：graphene;;ball to powder weight ratio;;ball milling;;composite powder 中文刊名：SJGY 英文刊名：Hot Working Technology 机构：中北大学材料科学与工程学院; 出版日期：2019-03-27 16:51 出版单位：热加工工艺 年：2019 期：v.48;No.508 基金：山西省自然科学基金面上项目(2015011036);; 山西省高等学校科技创新项目(2016156);; 中国博士后科学基金项目(2016M590214);; 山西省重点研发计划项目(201803D121028) 语种：中文; 页：SJGY201906031 页数：6 CN：06 ISSN：61-1133/TG 分类号：132-137

摘要

研究了不同球料比对石墨烯包覆铝复合粉体粒度的影响。采用扫描电子显微镜和X射线衍射仪对石墨烯/铝复合粉体的微观组织结构进行表征,分析了复合粉体的微观形貌和球料比对石墨烯包覆铝复合粉体粒度的影响。结果表明:球料比为5∶1的球磨参数下石墨烯可以均匀地分散在铝粉中,且无明显的团聚现象。当球料比为6∶1时其分散效果有所降低。而7∶1和8∶1两种球料比下的复合粉体有团聚现象的发生,一些颗粒发生变形,分散效果较差。且随着球料比的增大,石墨烯包覆铝复合粉体的粒度逐渐增大。并对石墨烯/铝复合粉体界面反应进行了热力学分析。
        The effect of different ball material ratio on the particle size of the graphene-coated aluminum composite powder was investigated. The microstructure of graphene/aluminum mixed powders was characterized by scanning electron microscope(SEM) and X ray diffraction(XRD). The microstructure of the composite powder and the influence of the ratio of the ball to the powder on the particle size of the aluminum matrix composite powder coated with graphene were analyzed. The results show that, the graphene under ball milling parameters of 5∶1 can be dispersed uniformly in aluminum powder, and there is no obvious agglomeration phenomenon. The dispersion of the graphene is reduced when the ratio of the ball to powder is6∶1. The two kinds of powders with the ratio of ball to powaer of 7∶1 and 8∶1 have reunion phenomenon, and some particles are deformed and the dispersive effect is poor. With the increase of the ball to powder weight ratio, the particle size of the aluminum composite powder coated with graphene increases gradually. At last, thermodynamic analysis of interfacial reaction between the graphene/aluminum composite powders was carried out.

引文

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