Structure and Behavior of the Ni End-Member Schreibersite Ni3P under Compression to 50 GPa
- Univ. of Hawaii at Manoa, Honolulu, HI (United States)
To better understand the potential presence of light element alloys of Fe and Ni in the Earth’s interior, the crystal structure and compressional behavior of the Ni-P binary compound, schreibersite (Ni3P), have been investigated using synchrotron X-ray diffraction experiments. Both powder and two single-crystal samples of synthetic Ni3P (in different orientations with respect to the loading axis of the diamond anvil cell) were compressed up to approximately 50 GPa at ambient temperature. The compressional data obtained for Ni3P were fitted with a 3rd order Birch–Murnaghan equation of state. All data indicated that the c/a ratio of unit cell parameters remained approximately constant up to about 30 GPa but then increased progressively with pressure, exhibiting a second slight discontinuity at approximately 40 GPa. The changes in unit cell parameters at ~30 GPa and ~40 GPa suggested discontinuous changes in magnetic ordering. Moreover, the threshold of these subtle discontinuities is sensitive to the stress state and orientation of the crystal in the diamond anvil cell. This study is the first report on the compressional behavior of both powder and single-crystal schreibersite at high-pressure (up to 50 GPa). It offers insights into the effects of Ni3P components on the compressional behavior of the Earth’s core.
- Research Organization:
- Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1608874
- Journal Information:
- Minerals, Journal Name: Minerals Journal Issue: 4 Vol. 10; ISSN MBSIBI; ISSN 2075-163X
- Publisher:
- MDPICopyright Statement
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Compression of bulk metallic glass Zr[subscript 57]Cu[subscript 15.4]Ni[subscript 12.6]Al[subscript 10]Nb[subscript 5] to 122 GPa
Single-crystal X-ray diffraction of fluorapatite to 61 GPa
Study on the High-Pressure Behavior of Goethite up to 32 GPa Using X-Ray Diffraction, Raman, and Electrical Impedance Spectroscopy
Journal Article
·
Fri Oct 28 00:00:00 EDT 2011
· High Pressure Res.
·
OSTI ID:1021794
Single-crystal X-ray diffraction of fluorapatite to 61 GPa
Journal Article
·
Mon Apr 03 00:00:00 EDT 2023
· American Mineralogist
·
OSTI ID:1969349
Study on the High-Pressure Behavior of Goethite up to 32 GPa Using X-Ray Diffraction, Raman, and Electrical Impedance Spectroscopy
Journal Article
·
Wed Jan 22 23:00:00 EST 2020
· Minerals
·
OSTI ID:1598013