高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

高压变质二氧化硅矿物的合成及表征

孙敬姝1, 刘晓梅1, 许大鹏1, 苏文辉1,2,3, 张国强1, 王德勇1, 王德1
  

    1. 吉林大学物理学院, 长春 130023;
    2. 哈尔滨工业大学凝聚态科学与技术研究中心, 哈尔滨 150001;
    3. 中国科学院国际材料物理中心, 沈阳 110015
  • 收稿日期:2005-12-14 修回日期:1900-01-01 出版日期:2006-11-10 发布日期:2006-11-10
  • 通讯作者: 刘晓梅

Synthesis and Characterization of High-pressure Metamorphic SiO2 Minerals

SUN Jing-Shu1, LIU Xiao-Mei1, XU Da-Peng1, SU Wen-Hui1,2,3, ZHANG Guo-Qiang1, WANG De-Yong1, WANG De1   

    1. College of Physics, Jilin University, Changchun 130023, China;
    2. Center for Condensed Matter Science and Technology, Harbin Institute of
      Technology, Harbin 150001, China;
    3. International Center for Materials Physics, Chinese Academy of Sciences,
      Shenyang 110015, China
  • Received:2005-12-14 Revised:1900-01-01 Online:2006-11-10 Published:2006-11-10
  • Contact: LIU Xiao-Mei

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被引次数

20

摘要： 根据高能机械球磨与地球板块碰撞之间具有的碰撞局域性和剪切应力相似的特点, 采用高能机械球磨和静高温高压技术, 以α-石英与石墨混合粉末为原料, 提出了人工合成地表柯石英的一种新方法. 利用高能机械球磨制备了α-石英和石墨纳米非晶混合粉末, 其高温高压合成柯石英的最低条件是970 K和3.7 GPa. 合成的柯石英有10个Raman峰, 分别位于120, 152, 179, 206, 270, 329, 357, 428, 467和521 cm-1, 是目前最全的柯石英Raman谱.

关键词: α-石英-石墨, 柯石英, 高能机械球磨, 高温高压

Abstract: We suggest a new laboratory method for synthesizing coesite in the earth's crust by considering the similarity characteristics of local collisions and shearing strength between the earth's plates and high energy mechanical ball milling(MBM), combining the high-energy MBM and high static pressure and high temperature technique, and using mixtures of α-quartz and graphite as the initial material. The nanometer amorphous mixture of α-quartz and graphite was prepared by high-energy MBM. The lowest pressure and temperature for synthesizing coesite are 3.7 GPa, 970 K. The Raman spectrum of synthetic coesite possessed ten peaks located at 120, 152, 179, 206, 270, 329, 357, 428, 467 and 521 cm-1. The obtained spectrum is coesite Raman spectrum with the most peaks among published results. The author attempts to look for useful information about the mineral circumstance of coesite in the Earth'surface and the mechanism of the ultrahigh-pressure metamorphism.

Key words: α-Quartz-graphite, Coesite, High-energy mechanical ball milling, High temperature and high pressure

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