Thermoelastic equation of state of boron subphosphide B12P2

Abstract

Compressibility of boron subphosphide B12P2 has been studied under quasi-hydrostatic conditions up to 26 GPa and 2600 K using laser-heated diamond anvil cell and angle-dispersive synchrotron X-ray diffraction. 300-K data fit yields the values of bulk modulus B0 = 192(11) GPa and its first pressure derivative B0' = 5.5(12). At ambient pressure the thermal expansion is quasi-linear up to 1300 K with average volume expansion coefficient α = 17.4(1) 10-6 K-1. The whole set of experimental p-V-T data is well described by the Anderson-Grüneisen model with δT = 6.

References in corpus (5)

• Superhard Phases of Simple Substances and Binary Compounds of the B-C-N-O System: from Diamond to the Latest Results (a Review)
• Experimental study and critical review of structural, thermodynamic and mechanical properties of superhard refractory boron suboxide, B6O
• Self-propagating high-temperature synthesis of boron subphosphide, B12P2
• Thermoelastic Equation of State of Boron Suboxide B6O up to 6 GPa and 2700 K: Simplified Anderson-Grüneisen Model and Thermodynamic Consistency
• Melting of B12P2 boron subphosphide under pressure

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• Mechanical properties of boron phosphides
• Discovery of new boron-rich chalcogenides: orthorhombic B6X (X = S, Se)
• Thermal expansion of α-boron and some boron-rich pnictides
• Structure and equation of state of tetragonal boron subnitride B50N2
• Equation of state of boron subarsenide B12As2 to 47 GPa
• Equations of state of new boron-rich selenides B${}_6$Se and B${}_{12}$Se
• Nanotwinning in boron subphosphide B12P2