Laser-driven MiniFlyer induced gold spall
作者:
David L. Robbins,
Russell J. Gehr,
Ron W. Harper,
Ted D. Rupp,
Stephen A. Sheffield,
David B. Stahl,
期刊:
AIP Conference Proceedings
(AIP Available online 1900)
卷期:
Volume 505,
issue 1
页码: 1199-1202
ISSN:0094-243X
年代: 1900
DOI:10.1063/1.1303676
出版商: AIP
数据来源: AIP
摘要:
A laser-launched miniature flyer system (MiniFlyer) is being used to study the dynamic properties of materials. A 3-mm diameter and 0.05-mm thick flyer plate is accelerated by a laser-pulse-induced plasma contained between a clear window substrate and the flyer plate. The substrate is coated with carbon, aluminum oxide, and aluminum to enhance the plasma formation process. The flyer impacts a gold target plate of 0.10 or 0.26 mm thickness, producing a shock. The shock pulse interacts with the free surface and reflects as a rarefaction wave, producing tension in the foil. Dynamic measurements of the free surface particle velocity were made using VISAR (Velocity Interferometer System for Any Reflector). Cross-sections of the gold targets exhibit spall planes at the expected locations. ©2000 American Institute of Physics.
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