准等熵压缩载荷下MgAl2O4透明陶瓷的折射率

IF 1.2 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

High Pressure Research Pub Date : 2021-07-03 DOI:10.1080/08957959.2021.1940999

K. Bao, Xianfeng Zhang, Guiji Wang, T. Chong, Jia-jie Deng, D. Han, M. Tan

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引用次数: 1

摘要

摘要:在动态高压加载实验中，间接获取样品原位颗粒速度的方法由于样品-窗口界面的稀薄波的影响而产生误差。在尖晶石加载实验中，采用尖晶石作为窗口是一种很有吸引力的减小样品与窗口总阻抗匹配误差的方法。为了探索尖晶石作为窗口的可能性，进行了斜波压缩实验，确定了加载纵向应力范围在15.9 GPa以下的折射率。结果表明，粒子速度曲线平滑，折射率与密度呈线性关系。通过分析温度对偏振率的影响，证明了温度对折射率的影响可以忽略不计。结果表明，尖晶石可作为尖晶石及类似阻抗材料加载实验的窗口。

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Refractive index of MgAl2O4 transparent ceramic under quasi-isentropic compression loading

ABSTRACT The indirect method of obtaining in situ particle velocity of sample, under dynamic high-pressure loading experiments, generates an error due to the influence of rarefaction wave from the sample-window interface. Using the spinel as a window is an attractive method to reduce the error due to the total impedance matching of sample and window in the loading experiments of the spinel. To explore the possibility of the spinel as a window, ramp wave compression experiments were conducted to determine the refractive index of loading longitudinal stress range below 15.9 GPa. The result showed smooth particle velocity curve and linear relationship between refractive index and density. The effect of temperature on refractive index can be negligible, proved by analyzing the effect of temperature on polarizability. It is indicated that the spinel can be used as a window for loading experiments of the spinel and similar impedance materials.

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来源期刊

High Pressure Research 物理-物理：综合

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

2 months

期刊介绍： High Pressure Research is the leading journal for research in high pressure science and technology. The journal publishes original full-length papers and short research reports of new developments, as well as timely review articles. It provides an important forum for the presentation of experimental and theoretical advances in high pressure science in subjects such as: condensed matter physics and chemistry geophysics and planetary physics synthesis of new materials chemical kinetics under high pressure industrial applications shockwaves in condensed matter instrumentation and techniques the application of pressure to food / biomaterials Theoretical papers of exceptionally high quality are also accepted.