Measurement of the Vaporization Pressure on Aluminum Target Irradiated by Laser Beam

YUAN Yong-Hua; LIU Chang-Ling; HAN Li-Shi; GUI Yuan-Zhen; LI Qi-Min

doi:10.11858/gywlxb.1990.02.006

Volume 4 Issue 2

Jul 2015

Turn off MathJax

Article Contents

Chinese Journal of High Pressure Physics > 1990 > 4(2): 114-117 .

YUAN Yong-Hua, LIU Chang-Ling, HAN Li-Shi, GUI Yuan-Zhen, LI Qi-Min. Measurement of the Vaporization Pressure on Aluminum Target Irradiated by Laser Beam[J]. Chinese Journal of High Pressure Physics, 1990, 4(2): 114-117 . doi: 10.11858/gywlxb.1990.02.006

Citation:

YUAN Yong-Hua, LIU Chang-Ling, HAN Li-Shi, GUI Yuan-Zhen, LI Qi-Min. Measurement of the Vaporization Pressure on Aluminum Target Irradiated by Laser Beam[J]. Chinese Journal of High Pressure Physics, 1990, 4(2): 114-117 . doi: 10.11858/gywlxb.1990.02.006

Citation:

PDF( 1488 KB)

Measurement of the Vaporization Pressure on Aluminum Target Irradiated by Laser Beam

doi: 10.11858/gywlxb.1990.02.006

Southwest Institute of Fluid Physics, Chengdu 610003, China

More Information

Corresponding author: YUAN Yong-Hua
Received Date: 11 Nov 1989
Rev Recd Date: 11 Nov 1989
Publish Date: 05 Jun 1990

Abstract

Abstract

The characteristics of aluminum target vapor expansion induced by the focused beam of neodymium-glass pulsed laser operated in the normal mode are investigated in this paper. Under laser flux about 10 MW/cm2, the Mach-dish characteristic parameters were measured by a time-integrated photo of the free jet, then the vapor pressure on target in the atmosphere is calculated. It is about 3.6 MPa. The time-integrated photo is compared with the high-speed photo of the free jet development, it is shown that the Mach-dish indeed occurred in the process of the target irradiated by the focused laser beam.
- laser-material interaction,
- Mach-disk,
- free jet,
- vaporization pressure