Structure and behavior of the barringerite Ni end-member, Ni2P, at deep Earth conditions and implications for natural Fe-Ni phosphides in planetary cores

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Structure and behavior of the barringerite Ni end-member, Ni2P, at deep Earth conditions and implications for natural Fe-Ni phosphides in planetary cores

[1] High-pressure and high-temperature behavior of synthetic Ni2P has been studied in a laser-heated diamond anvil cell up to 50 GPa and 2200 K. Incongruent melting associated with formation of pyrite-type NiP2 and amorphous Ni-P alloy was found at an intermediate pressure range, between 6.5 and 40 GPa. Above 40 GPa, Ni2P melts congruently. At room conditions, Ni2P has hexagonal C22-type struct...

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ژورنال

عنوان ژورنال: Journal of Geophysical Research

سال: 2009

ISSN: 0148-0227

DOI: 10.1029/2008jb005944