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Volume 30 Issue 4
Jul 2016
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Chinese Journal of High Pressure Physics  > 2016  >  30(4): 271-276.
YUAN Chao-Sheng, LIU Xiu-Ru, HE Zhu, HONG Shi-Ming. Improvement on Roasting Course of Pyrophyllite Gasket andInternal Heating Assembly in Bridgman Anvil[J]. Chinese Journal of High Pressure Physics, 2016, 30(4): 271-276. doi: 10.11858/gywlxb.2016.04.002
Citation: YUAN Chao-Sheng, LIU Xiu-Ru, HE Zhu, HONG Shi-Ming. Improvement on Roasting Course of Pyrophyllite Gasket andInternal Heating Assembly in Bridgman Anvil[J]. Chinese Journal of High Pressure Physics, 2016, 30(4): 271-276. doi: 10.11858/gywlxb.2016.04.002
shu

Improvement on Roasting Course of Pyrophyllite Gasket andInternal Heating Assembly in Bridgman Anvil

doi: 10.11858/gywlxb.2016.04.002
  • 1.

    Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China

  • 2.

    High Pressure Research Center of Science and Technology, Zhengzhou University of Light Industry, Zhengzhou 450002, China

  • Received Date: 25 Mar 2015
  • Rev Recd Date: 21 May 2015
    Abstract
  • We investigated the effects of the roasting course on behaviors of the pyrophyllite gasket under high pressures using Bridgman anvils.The results show that high roasting temperature is beneficial to increase the critical thickness and enlarge the area of the elastic central region of pyrophyllite gaskets, which helps to effectively enlarge the size of the sample chamber.The pressure calibration was carried out using the high-temperature (maximum 900℃) roasted pyrophyllite gasket.And based on this calibration, we measured the temperature at the center of the sample cavity with the improved internal heating assembly under ambient and high pressures respectively.The improved internal heating assembly expanded the heating range up to 1300℃ under 4.0GPa, which provides a much greater variety of conditions for the preparation of bulk metastable materials in the Bridgman anvils.

     

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