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

2011 Vol. 25, No. 3

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The Numerical Investigations of Standing Detonation Wave Structure and Performance at the Different Initial Temperatures
DONG Gang, FAN Bao-Chun
2011, 25(3): 193-199 . doi: 10.11858/gywlxb.2011.03.001
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Abstract:
The numerical simulations were performed to study the standing detonation wave structure and performance induced by a supersonic inflow impinging on a cone. The variations of detonation wave structure and the pressure behind the wave at the different initial temperatures of inflow were analyzed. The...
Sintering Process of Polycrystalline Diamond Compact under High Pressure
XU Guo-Ping, YIN Zhi-Min, CHEN Qi-Wu, HUANG Ji-Wu
2011, 25(3): 200-206 . doi: 10.11858/gywlxb.2011.03.002
PDF (511)
Abstract:
The polycrystalline diamond compact (PDC) samples sintered at 1 460 ℃, 5.6 GPa and at varied sintering time were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and EDX. In the XRD patterns, graphite (002) peak was found in the sample sintered for 40 s. It was also found...
Experimental Investigation on Interface Dynamic Friction of Granite under Combined Pressure and Shear Impact Loading
XU Song-Lin, ZHENG Wen, LIU Yong-Gui, ZHENG Hang
2011, 25(3): 207-212 . doi: 10.11858/gywlxb.2011.03.003
PDF (587)
Abstract:
To investigate the dynamic friction behaviors of rock interface, series of experiments including oblique planar impact with inclination angle 20 and 30, impact loading velocity ranging from 42.2 m/s to 130.6 m/s for Fangshan granite, are carried out. Experiments with inclination angle 20 were carrie...
Confined Pressure Calibration for 3 GPa Molten Salt Medium Triaxial Pressure Vessel under High Pressure and Temperature
HAN Liang, ZHOU Yong-Sheng, HE Chang-Rong, YAO Wen-Ming, LIU Gui, LIU Zhao-Xing, DANG Jia-Xiang
2011, 25(3): 213-220 . doi: 10.11858/gywlxb.2011.03.004
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Abstract:
A triaxial deformation apparatus with 3 GPa molten salt medium pressure vessel was developed. It is based on the conventional Griggs design and the molten salt cell concept modified. There is a huge difference between apparent confined pressure and true confined pressure due to the friction in the a...
Flatness Study on the Metallic Flyer Driven by Explosive Loading Assembly
ZHANG Zhu, LUAN Guang-Bo, NING Jian-Guo
2011, 25(3): 221-226 . doi: 10.11858/gywlxb.2011.03.005
PDF (612)
Abstract:
The split Hopkinson pressure bar and light gas gun as the two common means of dynamic loading are widely used in dynamic mechanical characteristics of many materials, while it can not meet the experimental study requirements of the concrete and reinforced concrete because of the small loading sample...
Simulation of Ablation Mode Laser Propulsion Efficiency of Confined Target Geometry
TONG Hui-Feng, TANG Zhi-Ping
2011, 25(3): 227-234 . doi: 10.11858/gywlxb.2011.03.006
PDF (583)
Abstract:
Under the irradiation of high power laser, the surface matter of solid target can be vaporized and ionized instantly. The ejected high temperature and high pressure plume generates propulsion force, this is the fundamental of ablated laser propulsion. A general Godunov finite difference WENO (Weight...
On the Shape Evolution of Underwater Explosion Bubbles by Cylindrical Charges
HUANG Chao, WANG Bin, LIU Cang-Li, WANG Yan-Ping, TAN Duo-Wang
2011, 25(3): 235-241 . doi: 10.11858/gywlxb.2011.03.007
PDF (585)
Abstract:
Oscillation images of underwater explosion bubbles generated by cylindrical PETN with length to diameter ratio from 3.35 to 6.75 are conducted in a water tank by using high-speed photography technology. Bubble shape evolution is investigated by involving real detonation processes and Rayleigh-Plesse...
The Study on Black cBN Synthesis with Different Systems
DU Yong-Hui, ZHANG Tie-Chen, ZHANG Wei-Sen
2011, 25(3): 242-246 . doi: 10.11858/gywlxb.2011.03.008
PDF (587)
Abstract:
As well known, cubic boron nitride display more integrated morphology and larger crystal sizes with the color burn. In this paper, black cBN crystals were synthesized in the systems of Mg+hBN, LiH+hBN, Li3N+hBN+B and B+Li3N, respectively. Optical microscope (OM), X-ray diffraction and Raman spectros...
Electrical Properties of Thermoelectric Material of PbTe1-xSex Prepared by High Pressure Synthesis
SU Tai-Chao, ZHU Hong-Yu, LI Hong-Tao, LI Shang-Sheng, LI Xiao-Lei, MA Hong-An, JIA Xiao-Peng
2011, 25(3): 247-250 . doi: 10.11858/gywlxb.2011.03.009
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Abstract:
The n-type thermoelectric materials of PbTe alloyed with PbSe (PbTe1-xSex) were prepared by high-pressure and high-temperature method. The structure and electrical properties of PbTe1-xSex were studied at room temperature. X-ray diffraction results indicated that the PbTe1-xSex sample exhibited the ...
Numerical Investigation of Penetration Performance of Segmented Rods Penetration into Steel Target
DENG Yun-Fei, ZHANG Wei, CAO Zong-Sheng, CHEN Yong
2011, 25(3): 251-260 . doi: 10.11858/gywlxb.2011.03.010
PDF (543)
Abstract:
The penetration performance of blunt segmented rods was studied with numerical simulations by using hydro code ANASYS-AUTODYN systematically, and the dependence of penetration performance on the connect configuration, shape, spacing distance, impact velocity of segmented rods was also investigated. ...
Experimental Study on Damage Effect of Simulated Ship Cabin Subjected to Missile Dynamic Explosion
DU Hong-Mian, WANG Yan, ZU Jing, XU Peng, MA You-Chun
2011, 25(3): 261-267 . doi: 10.11858/gywlxb.2011.03.011
PDF (654)
Abstract:
An experiment of missile dynamic explosion carried by rocket sled was performed. The structure size of simulated cabin, layout of testing points and properties of used instruments were introduced. According to broken lines, acquired light, pressure and acceleration signals, three conclusions were ma...
The Microstructures in 0.20%C Carbon Steel Induced by High-Current Pulsed Electron Beam
LI Yan, CAI Jie, ZOU Yang, WAN Ming-Zhen, GUAN Qing-Feng
2011, 25(3): 268-274 . doi: 10.11858/gywlxb.2011.03.012
PDF (467)
Abstract:
In order to investigate superfast deformation behavior of metal, annealed 0.20%C carbon steel was irradiated with high-current pulsed electron beam (HCPEB). The microstructures of irradiated samples were investigated by using X-ray diffraction (XRD), optical microscopy and transmission electron micr...
p-V Equation of State of (Fe0.03Ni0.97)8(Si0.79P0.21)3
YANG Jing, WU Xiang, QIN Shan
2011, 25(3): 275-281 . doi: 10.11858/gywlxb.2011.03.013
PDF (628)
Abstract:
Perryite (Fe0.03Ni0.97)8(Si0.79P0.21)3 sample was synthesized using the standard solid-state reaction. The X-ray diffraction results show that its space group is R3'c with the lattice parameters (a=b=0.663 8(1) nm, c=3.789 2(2) nm, V=1.446 15(6) nm3). In situ high-pressure X-ray diffraction experime...
Study on the Pressure-Volume-Temperature Properties of AO-80/Nitrile Rubber Composites
ZHANG Guo-Rong, ZHAO Xiu-Ying, GAO Yue-Kai, WU Si-Zhu
2011, 25(3): 282-288 . doi: 10.11858/gywlxb.2011.03.014
PDF (571)
Abstract:
AO-80/Nitrile rubber composites were prepared and characterized. According to DMTA experiments, the peak of tan moved towards higher temperature and the peak height of tan was also enhanced while the quantity of AO-80 increased. The pvT data was obtained by pvT dilatometer under different pressures....

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