Influence of Carbon-doped Content on Formation Conditions of Coesite

作     者：WANG De-jun LIU Xiao-mei ZHU Cheng-jun YAN Duan-ting LIU Yi-xin SUN Ying LIU Fu-lin SU Wen-hui 

作者机构：State Key Laboratory of Superhard Materials College of Physics Jilin University Changchun 130021 P. R. China Adult Education College Changchun University Changchun 130022 P. R. China Center of the Condensed Matter Science and Technology Harbin Institute of Technology Harbin 150001 P. R. China International Center for Material Physics Chinese Academy of Sciences Shenyang 110015 P. R. China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2009年第25卷第6期

页      面：920-923页

核心收录：

学科分类：080503[工学-材料加工工程] 0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：Supported by the National Natural Science Foundation of China(Nos.50872041 and 10674034) the National Foundation for Fostering Talent in Basic Science of China(No.J0730311) the Foundation of State Key Laboratory of Superhand Materials (No.200908) 

主　　题：Coesite High pressure Mechanical ball-milling α-SiO2 Graphite 

摘      要：The mixtures of a-quartz and graphite powder with different mass ratios were, respectively, high-energetically mechanically milled and then treated under high pressure and high temperature. The influences of carbon content on the synthesis conditions of coesite were investigated. The experimental products were characterized by XRD, TEM, and Raman spectrometry. The results show that the existence of carbon can obviously inhibit the formation of coesite, and the higher the carbon content of the initial material, the higher the pressure for forming coesite.