We have generated over 40 GPa pressures, namely, 43 and 44 GPa, at ambient temperature and 2000 K, respectively, using Kawai-type multi-anvil presses (KMAP) with tungsten carbide anvils for the first time. These high-pressure generations were achieved by combining the following pressure-generation techniques: (1) precisely aligned guide block systems, (2) high hardness of tungsten carbide, (3) tapering of second-stage anvil faces, (4) materials with high bulk modulus in a high-pressure cell, and (5) high heating efficiency.
Generation of pressures over 40 GPa using Kawai-type multi-anvil press with tungsten carbide anvils
T. Ishii, L. Shi, R. Huang, N. Tsujino, D. Druzhbin, R. Myhill, Y. Li, L. Wang, T. Yamamoto, N. Miyajima, T. Kawazoe, N. Nishiyama, Y. Higo, Y. Tange, T. Katsura; Generation of pressures over 40 GPa using Kawai-type multi-anvil press with tungsten carbide anvils. Rev. Sci. Instrum. 1 February 2016; 87 (2): 024501. https://doi.org/10.1063/1.4941716
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