低膨胀微晶玻璃在动高压物理中的应用

Application of Low-expansion Glass-ceramics in Dynamic High-pressure Physics

低膨胀微晶玻璃作为一种用于制作斜波发生器的材料,能产生加载速率较低的斜波,并可进一步实现时物质的准等熵压缩,因而在动高压物理中具有重要的应用前景和研究意义。重点介绍了这类材料在完全状态方程测量、冲击压缩线测量和低压相变研究等动高压领域的应用,并对其物理含义和发展概况进行了概述。

As a kind of ramp-wave generator material, low-expansion glass-ceramics have very important ap plication foreground and research significance in dynamic high-pressure physics, since it can generate ramp-waves with a low loading speed and produce quasi-isentropic compression to materials. In the present paper, the applications of low-expansion glass-ceramics in dynamic high-pressure physics, such as measurement of equation-of-state, testing of shock-wave curves and phase-transition under low pressures, are mainly introduced. The physical meaning and devel- opment of these materials are also summarized.