SIMULATION OF THE THERMAL STATE OF THE HIGH-PRESSURE APPARATUS IN THE STUDY OF THE SOLUBILITY OF GALLIUM NITRIDE IN IRON

  • O. P. Liudvichenko V. N. Bakul Institute for Superhard Materials of National Academy of Sciences of Ukraine
  • O. M. Anisin V. N. Bakul Institute for Superhard Materials of National Academy of Sciences of Ukraine
  • O. O. Lyeshchuk V. N. Bakul Institute for Superhard Materials of National Academy of Sciences of Ukraine
  • I. A. Petrusha V. N. Bakul Institute for Superhard Materials of National Academy of Sciences of Ukraine
Keywords: gallium nitride, high-pressure apparatus, high-pressure cell, finite element method

Abstract

The thermal state of the cell of the high-pressure apparatus used to determine the solubility of gallium nitride in iron was investigated using computer simulation. The results of calculations are presented by stationary temperature fields in various elements of the apparatus. It was found that at a temperature at the control point of the cell of 1800 °C its maximum difference in the volume of the studied samples of gallium nitride and iron is 25 °C. The simulated cell configuration and the heating conditions defined for it are acceptable for experimental studies of the solubility of GaN in contact with Fe under conditions of high pressures and temperatures.

Published
2022-02-11
Issue
Vol 24 No 1 (2021): Instrumental Materials Science
Section
Instrumental, structural and functional materials based on diamond and cubic bor