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Volume 29 Issue 6
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Chinese Journal of High Pressure Physics  > 2015  >  29(6): 401-409.
HU Yun, CHEN Li-Ying, LIU Xiu-Ru, PENG Xiao-Juan, SU Lei, HONG Shi-Ming. Evolution of the Mechanical Behavior of Pyrophyllite Gasket between Flat Anvils under Different Loading Pressures[J]. Chinese Journal of High Pressure Physics, 2015, 29(6): 401-409. doi: 10.11858/gywlxb.2015.06.001
Citation: HU Yun, CHEN Li-Ying, LIU Xiu-Ru, PENG Xiao-Juan, SU Lei, HONG Shi-Ming. Evolution of the Mechanical Behavior of Pyrophyllite Gasket between Flat Anvils under Different Loading Pressures[J]. Chinese Journal of High Pressure Physics, 2015, 29(6): 401-409. doi: 10.11858/gywlxb.2015.06.001
shu

Evolution of the Mechanical Behavior of Pyrophyllite Gasket between Flat Anvils under Different Loading Pressures

doi: 10.11858/gywlxb.2015.06.001
  • 1.

    School of Physical Science and Technology, Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, Southwest Jiaotong University, Chengdu 610031, China

  • 2.

    College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China

  • 3.

    College of Science, Wuhan University of Technology, Wuhan 430070, China

  • 4.

    National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621999, China

  • 5.

    Department of Physics, Zhengzhou University of Light Industry, Zhengzhou 450002, China

  • Received Date: 11 Dec 2014
    Abstract
  • On the basis of the compressible gasket model presented by Wakatsuki, we investigated the squeezing behavior of a pyrophyllite gasket using a Bridgman type high pressure apparatus with an anvil top diameter of 20 mm.A series of data including the critical thickness, the elastic region diameter, the compression spring-back rate etc., were measured under different loading forces.Combining with the pressure calibration at the center of the gasket, the image-analysis of recovered discs and related calculations, we described the evolution of the mechanical state and pressure distribution in the elastic and plastic regions of gasket along with the increase of the loading force, and then estimated the region of quasi-hydrostatic pressure in the gasket.The experimental results show that the increase rate of the center pressure with the loading force shows an upward trendency, which is a feature of the Bridgman anvils.

     

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