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Title: Equation of State of a Natural Chromian Spinel at Ambient Temperature

Abstract

A natural chromian spinel with the composition (Mg0.48(3)Fe0.52(3))(Fe0.06(1)Al0.28(1)Cr0.66(2))2O4 was investigated up to 15 GPa via synchrotron X-ray diffraction with a diamond-anvil cell at room temperature. No phase transition was clearly observed up to the maximum experimental pressure. The pressure–volume data fitted to the third-order Birch–Murnaghan equation of state yielded an isothermal bulk modulus ( K T 0 ) of 207(5) GPa and its first pressure derivative ( K T 0 ' ) of 3.2(7), or K T 0 = 202(2) GPa with K T 0 ' fixed as 4. With this new experimental result and the results on some natural chromian spinels in the literature, a simple algorithm describing the relation between the K T 0 and the compositions of the natural chromian spinels was proposed. To examine this algorithm further, more compression experiments should be performed on natural chromian spinels with different chemical compositions.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
DOE - BASIC ENERGY SCIENCESDOE-NNSAFOREIGN
OSTI Identifier:
1488482
Resource Type:
Journal Article
Journal Name:
Minerals
Additional Journal Information:
Journal Volume: 8; Journal Issue: 12; Journal ID: ISSN 2075-163X
Publisher:
MDPI
Country of Publication:
United States
Language:
ENGLISH

Citation Formats

Mi, Zhongying, Shi, Weiguang, Zhang, Lifei, Shieh, Sean, and Liu, Xi. Equation of State of a Natural Chromian Spinel at Ambient Temperature. United States: N. p., 2018. Web. doi:10.3390/min8120591.
Mi, Zhongying, Shi, Weiguang, Zhang, Lifei, Shieh, Sean, & Liu, Xi. Equation of State of a Natural Chromian Spinel at Ambient Temperature. United States. doi:10.3390/min8120591.
Mi, Zhongying, Shi, Weiguang, Zhang, Lifei, Shieh, Sean, and Liu, Xi. Sat . "Equation of State of a Natural Chromian Spinel at Ambient Temperature". United States. doi:10.3390/min8120591.
@article{osti_1488482,
title = {Equation of State of a Natural Chromian Spinel at Ambient Temperature},
author = {Mi, Zhongying and Shi, Weiguang and Zhang, Lifei and Shieh, Sean and Liu, Xi},
abstractNote = {A natural chromian spinel with the composition (Mg0.48(3)Fe0.52(3))(Fe0.06(1)Al0.28(1)Cr0.66(2))2O4 was investigated up to 15 GPa via synchrotron X-ray diffraction with a diamond-anvil cell at room temperature. No phase transition was clearly observed up to the maximum experimental pressure. The pressure–volume data fitted to the third-order Birch–Murnaghan equation of state yielded an isothermal bulk modulus ( K T 0 ) of 207(5) GPa and its first pressure derivative ( K T 0 ' ) of 3.2(7), or K T 0 = 202(2) GPa with K T 0 ' fixed as 4. With this new experimental result and the results on some natural chromian spinels in the literature, a simple algorithm describing the relation between the K T 0 and the compositions of the natural chromian spinels was proposed. To examine this algorithm further, more compression experiments should be performed on natural chromian spinels with different chemical compositions.},
doi = {10.3390/min8120591},
journal = {Minerals},
issn = {2075-163X},
number = 12,
volume = 8,
place = {United States},
year = {2018},
month = {12}
}