Author(s) Ono, S.; Kikegawa, T.
Journal Heliyon
Date Published 2016 Dec

The equation of state (EOS) of titanium boride, TiB2, was investigated by in situ X-ray diffraction in a diamond anvil cell and multianvil high-pressure apparatus. The pressure-volume-temperature (P-V-T) data were collected at up to 111 GPa and room temperature for the diamond-anvil cell experiments and at up to 15 GPa and 1300 K for the multianvil experiments. No phase transition was observed through the entire range of experimental conditions. The pressure-volume data at room temperature were fitted using a Vinet EOS to obtain the isothermal bulk modulus, BT0 = 256.7 GPa, and its pressure derivative, B' T0 = 3.83. When fitting a thermal EOS using the P-V-T data for the multianvil experiments, we find that = 0.095 (GPa/K) and α 0 = 2.49 × 10-5 K-1.

DOI 10.1016/j.heliyon.2016.e00220
ISSN 2405-8440
Citation Ono S, Kikegawa T. Titanium boride equation of state determined by in-situ X-ray diffraction. Heliyon. 2016;2(12):e00220.

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