镍/碳微球复合材料的制备和表征  

Preparation and Characterization of Nickel/Carbon Microspheres Composites

作　　者：郁军[1,2] 许并社[1,2] 

机构地区：[1]太原理工大学材料科学与工程学院,太原030024 [2]太原理工大学新材料界面科学与工程省部共建教育部重点实验室,太原030024

出　　处：《材料导报》2011年第10期52-53,58,共3页Materials Reports

基　　金：国家973计划项目(2004CB217808);科技部国际合作项目(2007DFA50940)

摘　　要：碳微球与微米镍粉按一定比例混合后,经过6h机械球磨并在1600℃真空热处理,合成了微米镍/碳复合材料。通过场发射扫描电镜(FESME)、高分辨透射电镜(HRTEM)和X射线衍射仪(XRD)对产物进行表征。结果表明,产物为碳包覆镍金属颗粒,粒径200～400nm的镍颗粒被30～100nm的碳层包覆,碳层的石墨化程度较高;产物石墨化碳层的形成缘于Ni3C的形成和分解。Nickel/carbon composites were synthesized with the vacuum heat treatment at 1600℃ after the mixture of carbon microspheres（CMSs） and nickel were grinded for 6h. The morphologies and structures of the products were characterized by field emission scanning electron microscopy（FESEM）, high resolution transmission electron microscopy（HRTEM） and X-ray diffraction（XRD）. Results show that Ni/CMSs composites, in which nickel microparticle with 200-400nm in diameter are coated with 30-100nm graphitic carbon layers. The formations of graphitizing carbon shell with the products are due to the formation and decomposition of the metal carbide Ni3C.

关 键 词：碳微球 镍粉 热处理 复合材料 

分 类 号：TB383[一般工业技术—材料科学与工程]