Thermoelastic equation of state of boron subphosphide B12P2

Compressibility of boron subphosphide B 12 P 2 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 B 0 = 192(11) GPa and its first pressu...

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Bibliographic Details
Published in:Journal of superhard materials 2017, Vol.39 (1), p.71-74
Main Authors: Solozhenko, V. L., Cherednichenko, K. A., Kurakevych, O. O.
Format: Article
Language:English
Subjects:
Boron
Bulk modulus
Chemistry
Chemistry and Materials Science
Compressibility
Diamond anvil cells
Equations of state
Laser beam heating
Letters to the Editor
Physical Chemistry
Pressure
Synchrotron radiation
Thermal expansion
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Summary:Compressibility of boron subphosphide B 12 P 2 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 B 0 = 192(11) GPa and its first pressure derivative B 0 ′ = 5.5(12). It has been found that 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 δ T = 6.
ISSN:1063-4576
1934-9408
DOI:10.3103/S1063457617010099