2013 Vol. 27, No. 4

Display Method:
Effects of Pressures on 111 Iron-Based Superconductors
JIN Chang-Qing, LIU Qing-Qing, DENG Zheng, ZHANG Si-Jia, XING Ling-Yi, ZHU Jin-Long, KONG Pan-Pan, WANG Xian-Cheng
2013, 27(4): 473-480. doi: 10.11858/gywlxb.2013.04.001
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Abstract:
Here we briefly review the effects of pressure on what we have discovered about 111 iron based superconductor. The record high superconductor transition temperature (Tc) up to 31 K in 111 system is reached with applied pressure. The isostructural evolution with applied pressure reveals an intimate l...
Compressional and Shear Wave Velocities of Rock Glasses up to 2.0 GPa and 1 000 ℃
JIANG Xi, ZHOU Wen-Ge, XIE Hong-Sen, LIU Yong-Gang, FAN Da-Wei
2013, 27(4): 481-489. doi: 10.11858/gywlxb.2013.04.002
PDF (384)
Abstract:
Measurements of compressional and shear wave velocities (vp and vs) under pressure from 0.4 to 2.0 GPa were performed on seven types of synthetic glasses, including basalt, andesite, dacite, amphibolite, pyroxenite, rhyolite and gneiss. At confining pressure of 2.0 GPa, the wave velocities were also...
Liquid-Liquid Phase Transition of Water at High Pressure and Ambient Temperature
WANG Hui-Yuan, ZHENG Hai-Fei
2013, 27(4): 490-494. doi: 10.11858/gywlxb.2013.04.003
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Abstract:
In-situ Raman measurement of water has been conducted at the temperature of 300 K and the pressure of 0.1-1 400 MPa using a SiC anvil cell. The experimental results show that the frequency of liquid water 1 decreases with increase of pressure (p), and two discontinuities are observed at about 200 an...
Electrical Transport Properties of PbSe Prepared by High Pressure and High Temperature
SU Tai-Chao, XU An-Tao, LI Hong-Tao, LI Shang-Sheng, FAN Hao-Tian, MA Hong-An, JIA Xiao-Peng
2013, 27(4): 495-499. doi: 10.11858/gywlxb.2013.04.004
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Abstract:
Consistent with the state of art thermoelectric material PbTe, PbSe belongs to group Ⅳ-Ⅵ semiconductor. And PbSe has the same crystal structure as PbTe. But there are few reports about PbSe as thermoelectric material. A large number of studies show that the thermoelectric performance of PbTe is impr...
Effects of High Pressure Treatment on Microstructure and Compressive Strength of Aluminum Bronze
WANG Hai-Yan, LI Ya-Li, CHEN Yan, LIU Jian-Hua, ZHANG Rui-Jun
2013, 27(4): 500-504. doi: 10.11858/gywlxb.2013.04.005
PDF (197)
Abstract:
The effects of high pressure treatment on the compressive strength of aluminum bronze were investigated, based on the measurement of its compressive strength, the analysis of its phase composition, and the observation of its microstructure and fracture morphology by means of electronic universal tes...
Measurement System of Transient Raman Spectroscopy and Its Application to Benzene under Shock Compression
CHEN Yuan-Fu, LIU Fu-Sheng, ZHANG Ning-Chao, ZHAO Bei-Jing, WANG Jun-Guo, ZHANG Ming-Jian, XUE Xue-Dong
2013, 27(4): 505-510. doi: 10.11858/gywlxb.2013.04.006
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Abstract:
A new measurement system for transient Raman spectroscopy under gas-gun loading and the Raman spectra of shocked benzene have been reported in this paper. The experimental results show that the Raman shifts of C-H stretching mode (3 061 cm-1) are linearly dependent of shock pressure between 0.8 GPa ...
A Transverse VISAR for Measuring Free Surface Transverse Velocity of Detonation-Driven Wedge Target
CHEN Guang-Hua, LIU Jun, MENG Jian-Hua, PENG Qi-Xian, YUAN Shu-Yun, WANG De-Tian, DENG Xiang-Yang
2013, 27(4): 511-516. doi: 10.11858/gywlxb.2013.04.007
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Abstract:
A transverse velocity interferometer system for any reflector (VISAR) has been developed by combination of a multipoint VISAR and a tri-probe device. One probe emits and receives laser, and the other two probes receive laser from different directions. The transverse and longitudinal velocities can b...
A Hydraulic Opposite Anvil System for High-Pressure in-Situ Neutron Diffraction
HUI Bo, HE Duan-Wei, LU Yu-Ping, CHEN Xi-Ping, ZHANG Ying, SUN Guang-Ai, CHEN Bo
2013, 27(4): 517-522. doi: 10.11858/gywlxb.2013.04.008
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Abstract:
A hydraulic opposite anvil system (HAL-11) consisting of an inner anvil cell, a hydraulic loading system, and an alignment system, is developed for high pressure in-situ neutron diffraction. The inner anvil cell can be compatible with various anvils with different culet sizes and materials, such as ...
Frequency Aliasing Used in Interior Ballistic Velocity Measurements for Gas Guns
TAO Tian-Jiong, WANG Xiang, CHEN Hong, WANG Wei, FU Qiu-Wei, WANG Xiao-Song
2013, 27(4): 523-527. doi: 10.11858/gywlxb.2013.04.009
PDF (276)
Abstract:
The occurrence of frequency aliasing and its representation in time and frequency domain are analyzed with sampling theory. Relationship between the sampled signal and the original signal is calculated and shows that the frequency of the original signal can be recovered by using the rule of frequenc...
Experimental Measurement and Numerical Simulation of Incident Shock Wave Pressure on the Fluid-Solid Interface
NI Xiao-Jun, MA Hong-Hao, SHEN Zhao-Wu, JIANG Yao-Gang, LI Lei
2013, 27(4): 528-534. doi: 10.11858/gywlxb.2013.04.010
PDF (497)
Abstract:
In order to research the mid-far field pressures of the incident shock wave on the fluid-solid interface, an experiment was designed to measure the shock wave pressure, by means of two PVDF piezoelectric film sensors laid on the bottom of double shell. The experimental process was simulated by the f...
Experimental Investigation of Protection Performance about Aluminum Mesh Bumper by High-Velocity Normal Impact
GUAN Gong-Shun, NIU Rui-Tao, BI Qiang, PANG Bao-Jun
2013, 27(4): 535-541. doi: 10.11858/gywlxb.2013.04.011
PDF (278)
Abstract:
The high-velocity normal impacts of space debris on bumper of spacecrafts were studied through a two-stage light gas gun launching 2017-T4 aluminum spheres to impact on 5052 aluminum mesh shield structure. The resist capability of aluminum mesh shield against high-velocity impact was discussed. For ...
A Study on Characteristics of Plasma Generated by Hypervelocity Impact
LI Jian-Qiao, SONG Wei-Dong, NING Jian-Guo
2013, 27(4): 542-548. doi: 10.11858/gywlxb.2013.04.012
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Abstract:
The characteristics of the plasma generated by hypervelocity impact have been studied by theoretical analysis and numerical simulation. Based on the theory of thermodynamics and statistical physics, a model of thermal ionization is proposed to describe the relationship between the degree of ionizati...
Influence of the Number of Layers on the Ballistic Resistance of Layered Thin Q235 Steel Plates
DENG Yun-Fei, ZHANG Wei, CAO Zong-Sheng, SONG Jian, WANG Qing-Lin
2013, 27(4): 549-555. doi: 10.11858/gywlxb.2013.04.013
PDF (514)
Abstract:
Layered plates are normally impacted by ogival, blunt and hemispherical projectiles using a gas gun to investigate the influence of the number of layers on the ballistic resistance and target failure model. The residual velocity versus the initial velocity curves for the projectiles are constructed,...
Powder Liner Density Effect on the Performance of Shaped Charge Jet
GAO Yong-Hong, GU Xiao-Hui, WANG Feng-Ying
2013, 27(4): 556-560. doi: 10.11858/gywlxb.2013.04.014
PDF (425)
Abstract:
In order to study the relation of powder liner material density and performance of the shaped charge jet, the curves of shaped jet velocity, jet particle momentum and jet particle kinetic energy with respect to the liner density were calculated under the same charge conditions, according to the Birk...
Ballistic Trajectory of High-Velocity Projectile Obliquely Penetrating Concrete Target
WANG Ke-Hui, NING Jian-Guo, LI Zhi-Kang, GENG Bao-Gang, ZHOU Gang
2013, 27(4): 561-566. doi: 10.11858/gywlxb.2013.04.015
PDF (423)
Abstract:
The experiments of small scale projectile obliquely penetrating a semi-infinite concrete target with a velocity from 980 to 1 870 m/s are performed by a two-stage light gas gun. The ballistic trajectory and characteristic parameters are tested and painted. The results show that the trajectory deflec...
Local Damage Effects of X70 Steel Pipe Subjected to Contact Explosion Loading
JI Chong, LONG Yuan, TANG Xian-Shu, GAO Zhen-Ru, LI Yu-Chun
2013, 27(4): 567-574. doi: 10.11858/gywlxb.2013.04.016
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Abstract:
Field explosion experiments were carried out to investigate the contact explosion damage effects of large diameter X70 steel oil-gas pipes. The contact explosion damage characteristics of pipes with different pipe wall thickness under various charge were analyzed. The experimental results show that ...
Numerical Simulation on the Damage and Hot-Spot Formation in Warhead Charge under Shock
CHENG Li-Rong, SHI Hui-Ji, CHEN Rong
2013, 27(4): 575-581. doi: 10.11858/gywlxb.2013.04.017
PDF (436)
Abstract:
In order to solve the difficult problem about the security of warhead in the penetration process, the relationship between damage and hot-spot formation in the charge has been researched. Based on crack friction under mechanical impact, a thermo-viscoelasticity constitutive model for explosive mater...
An Experimental Study on the Capacity for Work of Insensitive High Explosive
XU Hui, SUN Zhan-Feng
2013, 27(4): 582-586. doi: 10.11858/gywlxb.2013.04.018
PDF (411)
Abstract:
The capacity for work of insensitive high explosive JB-9014 was studied and compared with high explosive JOB-9003, by improved standard cylinder test, in which combined streak photography and laser interference technique. The results indicate that the capacity for work of JB-9014 is less than that o...
Effect of Experimental Conditions on the Experimental Results of Underwater Explosion
ZHANG Xing-Ming, XU Sen, GAO Xin, LIN Hui, ZHANG Jian-Xin
2013, 27(4): 587-591. doi: 10.11858/gywlxb.2013.04.019
PDF (383)
Abstract:
In order to obtain information about the influence of experimental conditions on the results of underwater explosion, the relationships between measure position, explosion depth and explosion parameters, which contain shock overpressure, shock wave energy per unit mass, bubble pulsation period and b...
Study of Pressure on the Inner Wall of Powder Cold Shock-Wave Extinguishing Bomb
JIANG Yao-Gang, MA Hong-Hao, SHEN Zhao-Wu, FAN Zhi-Qiang, WANG Quan
2013, 27(4): 592-598. doi: 10.11858/gywlxb.2013.04.020
PDF (317)
Abstract:
In order to study the shell fragmentation and the early motion of extinguishing medium after explosion in the cold shock-wave extinguishing system, the pressure on the inner wall of the cold shock-wave extinguishing bomb must be firstly understood. The change of pressure has been studied by dimensio...
Propagation of Non-Ideal Detonation Wave Confined by Inert Medium
JIANG Yang, LI Yuan, TANG Mi, ZHONG Min, TAN Duo-Wang
2013, 27(4): 599-603. doi: 10.11858/gywlxb.2013.04.021
PDF (295)
Abstract:
In order to have an insight into the propagation of non-ideal detonation wave confined by inert medium, the shock polar method relating the pressure/streamline-deflection matching condition at the explosive/inert medium interface was adopted. The detonation front shape and the pressure distribution ...
Advances in High Pressure Processing Reducing the Allergenicity of Food Proteins
LONG Fang-Yu, SHI Xue-Ping, WANG Rong-Rong, JIANG Bin, DONG Peng, HU Xiao-Song
2013, 27(4): 604-608. doi: 10.11858/gywlxb.2013.04.022
PDF (680)
Abstract:
As a new non-thermal technology, high pressure processing destroys vegetative microorganisms and inactivates enzymes, whereas fresh flavour, colour, mineral balance and vitamins mostly persist. In addition, high pressure processing has been investigated to decrease the allergenicity of food protein....
Effects of High Hydrostatic Pressure on the Solubility and Molecular Structure of Rice Protein
WANG Zhang-Cun, TIAN Wei-Huan, CUI Sheng-Wen, ZHAO Xue-Wei, ZHENG Jian-Qiang, LI Chang-Wen, YUAN Dao-Qiang
2013, 27(4): 609-615. doi: 10.11858/gywlxb.2013.04.023
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Abstract:
The effects of high hydrostatic pressure (HHP) treatment at 100-500 MPa for 10-30 min on the solubility and molecular structure characteristics of thermal denatured rice protein dissolved in solvent A (water solution, pH 8.0) and solvent B (containing 6 mol/L urea and 1% mercaptoethanol, pH 8.0) wer...
Effect of High Pressure Processing on the Quality of Chilled Stored Grass Carp (Ctenopharyngodon idella) Fillet
YAKHIN Lisa Amanda, ZHANG Li-Li, WANG Yuan-Liang, LI Zong-Jun
2013, 27(4): 616-624. doi: 10.11858/gywlxb.2013.04.024
PDF (251)
Abstract:
This study is aimed to observe the effect of different pressure (300, 400, 500 MPa) and different pressure holding time (5, 10, 15 min) on vacuum packed grass carp fillet. The fillets were stored at chilling temperature (4 ℃) for 15 d, and the observations were carried out every 3 d. The electron mi...
Experimental Study on Rate-Dependent Constitutive Relations with Damage for Plastic-Bonded Explosives
LI Dan, ZHAO Feng, FU Hua, LI Ke-Wu
2013, 27(4): 625-632. doi: 10.11858/gywlxb.2013.04.025
PDF (303)
Abstract:
Cyclic loading and unloading experiments and the uniaxial compressive experiment of plastic-bonded explosives (PBX) under different strain rate were performed by a universal material testing machine. The stress-strain curves of plastic-bonded explosives were obtained in different operating condition...