Notice on the organization of advanced research class on high-pressure science and new materials of engineering knowledge of professional and technical personnel Notice on the organization of advanced research class on high-pressure science and new materials of engineering knowledge of professional and technical personnel

1998 Vol. 12, No. 4

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Microstructure Damage of Glasses under Shock Wave Compression
HE Hong-Liang, JING Fu-Qian, JIN Xiao-Gang, KANEL G I
1998, 12(4): 241-249 . doi: 10.11858/gywlxb.1998.04.001
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Abstract:
Experimental measurements were conducted for the shock compressed glasses at the stresses below their Hugoniot elastic limit ( HEL ). It has been revealed that, in terms of the microstructure damage degree, there exist two different regions within the stressed samples: a compressed (without damage) ...
Crystalline-Amorphous Transition of LiB3O5 under High Pressure
CHEN Liang-Chen, WANG Li-Jun, GU Hui-Cheng, LI Feng-Ying, ZHOU Lei, CHE Rong-Zheng, XIU Li-Song
1998, 12(4): 250-253 . doi: 10.11858/gywlxb.1998.04.002
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Abstract:
Pressure induced amorphous transition of LiB3O5 (LBO) has been investigated by using in situ high pressure X-ray powder diffraction and energy dispersive X-ray diffraction with synchrotron radiation at the pressure up to 45.1 GPa. According to the experimental results, LBO undergoes two intermediate...
Equation of State, Electrical Properties and Phase Transition in CuO at High Pressure
BAO Zhong-Xing, CHENG Kai-Jia, ZHAO Chang-Sen, CHENG Shu-Yu, LIU Cui-Xia, CAI Zong-Yi, LI Yan
1998, 12(4): 254-257 . doi: 10.11858/gywlxb.1998.04.003
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Abstract:
The p-V relationship for CuO at room temperature and up to 4.5 GPa has been studied using the piston-cylinder type measurement device, and its equation of state, Grneisen parameter 0, bulk modulus B0 and the first order pressure derivative B0' have been given. And the resistance-pressure and capacit...
Shock Compressive Properties of Three Tungsten Alloys
WANG Jin-Gui, LI Xin-Zhu, WANG Wei, FU Qiu-Wei, WANG Xiang
1998, 12(4): 258-263 . doi: 10.11858/gywlxb.1998.04.004
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Abstract:
A deviation controlling technique was described in this paper, with which Hugoniot curves of three tungsten alloys have been obtained with higher accuracy. A comparison with the prediction of superposition calculation is very suitable for the principle of superposition exhibits that the shock compre...
The Rectangular Diffraction of Detonation Wave in the High Explosive RHT-901 and the Insensitive High Explosive IHE-2
ZHAO Tong-Hu, HAN Li-Shi, HE Zhi
1998, 12(4): 264-270 . doi: 10.11858/gywlxb.1998.04.005
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Abstract:
The patterns of rectangular diffraction of detonation in the high explosive RHT-901 and the insensitive high explosive IHE-2 have bean measured with the rotating mirror framing camera and the coaxial ionization probes techniques. Results show that (1) the reaction is incomplete near the convex angle...
Equation of State of Detonation Product (Ⅰ)－Detonation Heat, Isentropic Equation and Equation of State of Detonation Product
LI Yin-Cheng
1998, 12(4): 271-281 . doi: 10.11858/gywlxb.1998.04.006
PDF (681)
Abstract:
In this paper, it attempts to clarify some doubtful points existed currently which are related to detonation heat, isentropic equation and equation of state of detonation product.
Numerical Simulation for the Propagation of Thermal Shock Waves Induced in Materials Irradiated by Pulsed Electron Beam
PENG Chang-Xian, XU Yong-Liang
1998, 12(4): 282-290 . doi: 10.11858/gywlxb.1998.04.007
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Abstract:
We have made numerical simulations of the propagation of thermal shock waves induced in aluminum alloys irradiated by the electron beam on FLASH-Ⅱ, adopting an analytic method of the energy deposition, the constitution relation of material in low-pressure zone and one-dimension strain model of the e...
Study on the Shock Compression of Foam Silicon Rubber
LI Xin-Zhu, WU Qiang, ZHANG Han-Zhao, WANG Xiang, ZENG Jian-Rong
1998, 12(4): 291-297 . doi: 10.11858/gywlxb.1998.04.008
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Abstract:
An investigation has been carried out for the shock compression of the foam silicon rubber (FSR) with initial density of 0.92 g/cm3. In the pressure range from 6 GPa to 33 GPa, the Hugoniot relation between shock velocity D and particle velocity u has been obtained: D=1.686+1.367u. Compared with the...
Pressure Induced Crystallization of Polyamide-6 from the Melt
Lü Yun-Wei, HUANG Rui, XIE Bang-Hu
1998, 12(4): 298-302 . doi: 10.11858/gywlxb.1998.04.009
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Abstract:
A study has been made on the crystallization of polyamide-6 from the melt under high pressure. The morphology and structure has been investigated by means of differential scanning calorimetry, wide angle X-ray diffraction and scanning electron microscopy. The experimental facts show that during the ...
Nano-Crystalline Diamond Prepared by Laser Ablating Solid Target in Liquid
WANG Jin-Bin, LIU Qiu-Xiang, YANG Guo-Wei, CHEN Xiong-Qun, YOU Jian-Qiang
1998, 12(4): 303-306 . doi: 10.11858/gywlxb.1998.04.010
PDF (754)
Abstract:
Nano-crystalline diamond has been prepared by laser ablation method in which graphite target is ablated by high-power pulsed-laser in acetone solution. Transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) indicate that nano-crystalline diamonds have hexagonal lattice...

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