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Chinese Journal of High Pressure Physics  > 2004  >  18(2): 97-102 .
LI Xiao-Jie, WANG Jin-Xiang, ZHANG Yue-Ju, LI Rui-Yong, ZHAO Zheng. Research of Temperature Rise at the Particles Interface Caused by Adiabatic Friction in Explosive Consolidation of Powders[J]. Chinese Journal of High Pressure Physics, 2004, 18(2): 97-102 . doi: 10.11858/gywlxb.2004.02.001
Citation: LI Xiao-Jie, WANG Jin-Xiang, ZHANG Yue-Ju, LI Rui-Yong, ZHAO Zheng. Research of Temperature Rise at the Particles Interface Caused by Adiabatic Friction in Explosive Consolidation of Powders[J]. Chinese Journal of High Pressure Physics, 2004, 18(2): 97-102 . doi: 10.11858/gywlxb.2004.02.001
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Research of Temperature Rise at the Particles Interface Caused by Adiabatic Friction in Explosive Consolidation of Powders

doi: 10.11858/gywlxb.2004.02.001

  • Department of Engineering Mechanics of Dalian University of Technology, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian 116023, China

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  • Corresponding author: LI Xiao-Jie
  • Received Date: 23 Oct 2003
  • Rev Recd Date: 04 Jan 2004
  • Publish Date: 05 Jun 2004
    Abstract
  • In this paper, a slanting impaction model of two parallel plates was proposed to research the effect of friction between particles during explosive consolidation of powder. The change tendence of the interface friction of the particles with the change of temperature was analyzed, and influence of shock compression, grain size of powders and intensity of material on the time for the holes compaction was researched by LS-DYNA program. A formula to calculate the temperature rise at interface caused by adiabatic friction is given. The result shows that the temperature rise is related to factors of material's characteristics, size of particles, angle of shock-direction and shock compression and so on. The temperature rise decreases with the increase of ability of heat deposit and transfer, and the intensity of material's. It increases as the porosity of material, size of diameter or shock pressure increases. The temperature at the interface can be higher than melting point of the material if the grain diameter and compact force are appropriate.

     

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