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兵工学报  2010 

激光驱动准等熵压缩实验研究

, PP. 1084-1089

Keywords: 爆炸力学,激光驱动,准等熵压缩,反积分

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Abstract:

?利用激光驱动的等离子体实现平面准等熵压缩是近年发展起来的一种新型动高压加载方式,同时也是目前加载应变率最高的准等熵压缩方式,该技术为研究材料准等熵压缩特性和物态方程提供了一条新的途径。探索了激光驱动下平面准等熵压缩的实验技术,在100J固体激光器上成功开展了金属样品的准等熵压缩实验,利用位移干涉测速技术获取了Al/LiF样品界面的速度历史,在样品中获得了接近500m/s的原位粒子速度,应变率达106s-1,准等熵压缩峰值约7GPa.

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