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| 硅掺杂量对柯石英形成条件的影响硅掺杂量对柯石英形成条件的影响 | |
| 引用本文： | 王德军,刘润茹,冷静.硅掺杂量对柯石英形成条件的影响硅掺杂量对柯石英形成条件的影响[J].吉林大学学报(理学版),2012,50(4):785-788. |
| 作者姓名： | 王德军 刘润茹 冷静 |
| 作者单位： | 1. 长春大学 继续教育学院, ,长春 130022,2. 长春大学 理学院, 长春 130022; 3. 长春工业大学 基础科学学院, 长春 130012 |
| 摘 要： | 以不同质量比的α\|石英和硅混合粉体作为初始原料, 利用高能机械球磨和高压高温处理相结合的方法, 考察硅元素含量对柯石英形成条件的影响. 用X射线衍射(XRD)和Raman谱表征实验产物. 结果表明, 在高压高温密封条件下, α\|石英晶粒表面的Si与氧原子的吸引力较强, 阻碍了近邻原子位移, 从而制约了从六方α\|石英到单斜柯石英的马氏体型同质异构变化. |
| 关 键 词： | α\ SiO2 硅 柯石英 机械球磨 高温高压 |
| 收稿时间： | 2012-04-06 |
Influence of Silicon-Doped Content on Formation Conditions of Coesite |
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| WANG De-jun , LIU Run-rn , LENG Jing.Influence of Silicon-Doped Content on Formation Conditions of Coesite[J].Journal of Jilin University: Sci Ed,2012,50(4):785-788. | |
| Authors: | WANG De-jun LIU Run-rn LENG Jing |
| Institution: | 1. College of Continuing Education, Changchun University, Changchun 130022, China; 2. College of Science, Changchun University, Changchun 130022, |China; 3. School of Basic Sciences, Changchun University of Technology, Changchun 130012, China |
| Abstract: | The mixed powder samples of α-quartz and silicon with different mass ratios were used as raw materials.The influence of silicon content on coesite formation conditions was investigated by means of combining the high-energy mechanical ball-milling with high temperature high pressure(HTHP) method.The experimental products were characterized by X-ray diffraction(XRD) and Raman spectrometry.The results show that Si atom on α-quartz grain surface has a strong affinity for oxygen atom under sealing environment with HTHP,prevents neighbor atoms from displacement and thereby the Markov-type homogeneous change from hexagonal α-quartz to monoclinic coesite is constrained. |
| Keywords: | α-SiO2 silicon coesite mechanical ball-milling high temperature high pressure(HTHP) |
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