| α-LiIO3的等温压缩和高温高压下的相变 |
| |
| 引用本文： | 胡静竹,陈良辰,王莉君,唐汝明,车荣钲.α-LiIO3的等温压缩和高温高压下的相变[J].物理学报,1987,36(7):1099-1104. |
| |
| 作者姓名： | 胡静竹 陈良辰 王莉君 唐汝明 车荣钲 |
| |
| 作者单位： | 中国科学院物理研究所 |
| |
| 摘 要： | 用金刚石压砧高压X射线衍射技术研究了α-LilO3在室温高压下的压缩行为,压力达23.0GPa。观察到晶格压缩的各向异性,其c/a轴比以-6.187×10-3/GPa的速率减小。得到其常压下的体弹模量B0=39.2GPa,体弹模量对压力的一阶导数B＇0=3.787。α-LiIO3在高温高压下转变成四方结构,与淬火卸压所得的ε-LiIO3结构一致。
关键词：
|
| 收稿时间： | 9/8/1986 12:00:00 AM |
ISOTHERMAL COMPRESSION OF α-LiIO3 AND ITS PHASE TRANSITION UNDER HIGH PRESSURE AND HIGH TEMPERATURE |
| |
| HU JING-ZHU,CHEN LIANG-CHEN,WANG LI-JUN,TANG RU-MING and CHE RONG-ZHENG.ISOTHERMAL COMPRESSION OF α-LiIO3 AND ITS PHASE TRANSITION UNDER HIGH PRESSURE AND HIGH TEMPERATURE[J].Acta Physica Sinica,1987,36(7):1099-1104. |
| |
| Authors: | HU JING-ZHU CHEN LIANG-CHEN WANG LI-JUN TANG RU-MING and CHE RONG-ZHENG |
| |
| Abstract: | The volume compression of α-LiIO3 has been studied by X-ray diffraction in a diamond anvil cell up to 23.0 GPa at room temperature. The anisotropic compression of lattice was observed. The ratio of c/a of parameters decreased with a rate of -6.187×10-3/GPa with pressure. The bulk modulus of normal pressure and its first pressure deviative have been determined to be equal to 39.2 and 3.787 GPa respectively. At high pressure and high temperature, hexagonal α-LiIO3 transformed to a tetragonal phase. The structure was the same as quenching-releasing pressure phase, i.e., the ε phase. |
| |
| Keywords: | |
|
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
|
