高压物理学报

1996 Vol. 10, No. 4

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Experimental Study on Reactions of Graphite and Siderite with Supercritical Water

WENG Ke-Nan, XIAO Wan-Sheng, ZHANG Hui-Zhi, WANG Ben-Shan

1996, 10(4): 241-244 . doi: 10.11858/gywlxb.1996.04.001

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Abstract:
In order to investigate the formation mechanism of abiogenetic hydrocarbon in the deep earth, experiments on reactions of graphite and siderite with supercritical water have been conducted using the apparatus of diamond anvil cell (DAC) under temperature about 800～1 500 ℃ and pressure approximately ...

Shock-Induced Phase Transitions of Single Crystal InSb along (111) Axis

LI Da-Hong, TANG Zhi-Ping, LI Xin-Zeng, ZHOU Guang-Quan, WANG Wen-Qiang

1996, 10(4): 245-251 . doi: 10.11858/gywlxb.1996.04.002

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Abstract:
Shock-induced phase transition along the (111)-axis of InSb single crystal were studied by using light-gas-gun techniques, along with the influences of shear stress on the phase transition. Shock pressure ranges from 1.75 to 3.8 GPa. It is found that the incipient pressure of phase transition for In...

Study on Detonation Driving of Insensitive High Explosive

LIU Wen-Han, LI Liang-Zhong, YU Chuan, YANG Shu-Ying, FENG Min-Xian

1996, 10(4): 252-261 . doi: 10.11858/gywlxb.1996.04.003

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Abstract:
Two typical detonation driving models for IHE have been experimentally studied. One is divergent detonation driving with point initiation, the other, the slipping detonation driving. The HE detonation driving experiments were conducted at the same condition in order to compare the IHE and the HE dri...

A Numerical Simulation to the Deformation of an Internally Pressured Cylinder Tank under Intensive Laser Irradiation

ZHAO Jian-Heng, ZHANG Guan-Ren, LIU Xu-Fa

1996, 10(4): 262-268 . doi: 10.11858/gywlxb.1996.04.004

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Abstract:
When intensive laser beam irradiated on a cylinder tank wall, bulge and rupture will take place at the area laser loaded. In this paper, the finite element method is used to simulate the deformation. The stress and strain field calculations predict that the center of the laser beam irradiated region...

An Investigation on CW Laser Induced Two-Dimensional Nonlinear Temperature Field of Metals

WANG Wei-Ping, LIU Xu-Fa, LIU Chang-Ling

1996, 10(4): 269-274 . doi: 10.11858/gywlxb.1996.04.005

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Abstract:
The thermal effects of the continuous wave (CW) laser (intensity 1 kW/cm2, spot diameter 2.8 cm) irradiation on 30CrMnSiA steel and LD10-CS aluminum alloy were investigated with a 2-dimensional finite element model. The simulation gives the target temperature field at different time, the different t...

Effects of High Temperature on Fullerences

MA Yan-Zhang, ZOU Guang-Tian, HAN Jie, LI Xiang-Sheng, PAN Yue-Wu, LUO Wei

1996, 10(4): 275-279 . doi: 10.11858/gywlxb.1996.04.006

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Abstract:
The high temperature behavior of fullerenes was studied in this paper. It is found that the molecular structures of fullerenes will be destroyed at temperatures higher than 870 K, and transform into an amorphous state of carbon. The effect of the space structure of fullerenes on its thermal characte...

The Formation of a New Approximant of Decagonal Quasi-Crystal in Al6FeYb Alloy under High Static Pressure

XU Da-Peng, PANG Yan-Xin, SU Wen-Hui

1996, 10(4): 280-283 . doi: 10.11858/gywlxb.1996.04.007

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Abstract:
In the investigations, samples of Al6FeYb alloy were quenched with a cooling rate of 102 K/s from melting state (1 400 ℃) under high static pressure (4.8 GPa). A new crystalline approximant was observed and its structure was a B-type orthorhombic crystalline phase with the lattice parameters of a=0....

Equation of State of Detonation Products and the Possible Phase Transition for CHBr3

LIU Hai-Feng, CHEN Dong-Quan, ZHANG Shi-Ze

1996, 10(4): 284-290 . doi: 10.11858/gywlxb.1996.04.008

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Abstract:
The equilibrium compositions of the gas-solid mixture are calculated by minimizing the Gibbs free energy and chemical equilibrium. BKW and VLW equations are proposed for the EOS of detonation products and the detonation properties of explosive composed of C-H-N-O have been calculated. The results ar...

The Effect of the Grain Size of a Liner on the Performance of Shaped Charge Jets

WANG Tie-Fu, WANG Lei, RUAN Wen-Jun, ZHAO Tong-Hu

1996, 10(4): 291-298 . doi: 10.11858/gywlxb.1996.04.009

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Abstract:
For a given shaped charge, the effects of the grain size of a liner on the performance of shaped charge jets have been investigated with aid of fire tests and flash X-ray radiographs. It was shown from experimental results that the performance of copper liner shaped charge jets are strongly dependen...

Measurement of Shock-Hugoniot Curve of Low-Density Silastic

ZENG Jian-Rong, LIU Yong, DU Bao-Guo, XU Liang

1996, 10(4): 299-303 . doi: 10.11858/gywlxb.1996.04.010

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Abstract:
The shock-Hugoniots of two low-density silastic samples were measured by the impedance matching method in the pressure range from 2.5 to 15 GPa. The p-up and us-up curves were obtained. C0, and were calculated by using least square fitting. The experimental results are in reasonable agreement with t...

An Experimental System for Emission Spectra Measurements under Shock Wave Compression

WANG Yong-Guo, HU Dong, XU Gang, LI Xiao-Chang, SHI Shang-Chun, JING Fu-Qian, XIAO Bang-Neng

1996, 10(4): 304-307 . doi: 10.11858/gywlxb.1996.04.011

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Abstract:
An experimental system for measuring emission spectra has successfully been established by using a two-stage light-gas gun and the OMA-Ⅲ system, in which pulse-gated synchronous trigger technique was used. The timing trigger is the most important aspect of this kind experimental technique.

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Founded in 1987, monthly

Hosted by:Institute of Fluid Physics, CAEP

Sponsored by:Topical Committee of High Pressure of Chinese Physical Society Sichuan Physical Society

Editor-in-Chief:MA Yanming

1996 Vol. 10, No. 4

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