C/ZrO_2复合纳米粉体的快速制备及其机理研究  

Rapid Preparation and Characterization of Carbon/Zirconia Nanometer Composites

作　　者：王作山[1] 李凤生[1] 刘玉存[2] 张景林[2] 刘建勋[1] 

机构地区：[1]南京理工大学国家特种超细粉体工程技术研究中心,江苏南京210094 [2]中北大学化学与环境学院,山西太原030051

出　　处：《高压物理学报》2008年第2期131-136,共6页Chinese Journal of High Pressure Physics

基　　金：江苏省博士后基金(0502021C)

摘　　要：采用激波等离子法制备了C/ZrO2纳米复合粉体。通过X衍射、拉曼光谱对复合粉体的晶相组成进行了分析,利用透射电镜(TEM)对复合粉体的粒度、形貌进行了表征,借助热重分析对粉体的组成进行了检测,进一步对粉体的制备机理进行了探讨。结果表明:激波等离子体法可实现C/ZrO2纳米复合粉体的快速制备,所制备出粉体的粒径在10 nm左右,复合粉体中碳为石墨相,约占总量的63%(质量分数),氧化锆占总量的37%,主相为四方相。Nanometer carbon/zirconia compound powder was synthesized via novel shock wave plasma technique. X-ray diffraction and Raman spectrum were respectively used to characterize the crystal phase composition of the compound powder. Transmission Electron Microscope was used to observe the size and appearance of the as-synthesized powder, precursor and the as-synthesized product. The composition of the compound were tested through DTA/TG analysis. The preparation mechanism was also discussed. The results indicated that the carbon/zirconia compound powder of 10 nm in diameter was synthesized via shock wave plasma technique. The components of the compound powder include 63% （mass fraction） graphite and 37% tetragonal zirconia.

关 键 词：激波等离子 负氧平衡炸药 复合纳米粉体 C/ZrO2 

分 类 号：O389[理学—流体力学]