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| 电气石超细粉碎机械力化学效应研究 | |
| 引用本文： | 李雯雯,吴瑞华,刘贞.电气石超细粉碎机械力化学效应研究[J].硅酸盐通报,2010,29(1). |
| 作者姓名： | 李雯雯 吴瑞华 刘贞 |
| 作者单位： | 1. 中国地质博物馆,北京,100034 2. 中国地质大学,北京,100083 3. 中材人工晶体研究院,北京,100018 |
| 基金项目： | 国家自然科学基金(No.40672204);;科技部国家科技基础条件平台工作重点项目(No.2005DKA21405) |
| 摘 要： | 本文对电气石超细粉碎机械力化学效应进行了研究,采用XRD、FTIR、DTA-TC等测试方法对超细粉体进行了表征,并对粉碎前后的电气石进行了磁感应强度、红外辐射和诱发负离子功能的对比测试,研究表明:在研磨过程中电气石晶格发生膨胀,属晶格畸变范畴,一些振动精细结构消失,谱峰出现简并和宽化的特征,SiO4]引起的谱带逐渐消失和红移;超细粉体除脱吸附水外的吸热效应的最大值温度有所降低,由原样的1004℃降低至907℃;粉碎后粉体矫顽力增大;超细粉碎导致晶格周期性的破坏,提高了晶格极性振动的非简谐效应,有效改善电气石在一定波长范围内的红外辐射率;随粒度减小,电气石所诱发的负离子在一定程度上增多,但当粒径小到一定程度则开始减小。 |
| 关 键 词： | 电气石 超细粉体 机械力化学效应 |
Mechanochemical Effects Brought from Superfine Grinding Tourmaline |
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| LI Wen-wen,WU Rui-hua,LIU Zhen.Mechanochemical Effects Brought from Superfine Grinding Tourmaline[J].Bulletin of the Chinese Ceramic Society,2010,29(1). | |
| Authors: | LI Wen-wen WU Rui-hua LIU Zhen |
| Affiliation: | 1.The Geological Museum of China;Beijing 100034;China;2.China University of Geosciences;Beijing 100083;3.Research Institute of Synthetic Crystals;Beijing 100018;China |
| Abstract: | Mechanochemical effects brought from superfine grinding tourmaline were researched by XRD,FTIR,DTA-TC and carried through contrast tests of the pre and post grinding particle. The crystal lattice has inflation,but it is the lattice distortion category. Ultrafine grinding causes some vibration and fine structure vanishing.The peak present the characteristic which degenerate and wide,the band which \SiO4\] causes vanishes and red shift. The mechanical energy transforms to internal energy of tourmaline,which ... |
| Keywords: | tourmaline ultra-fine powder mechanochemical effects |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
