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Title: Thermal behavior of iron arsenides under non-oxidizing conditions
Authors: Seitkan, Ainur
Lampronti, Giulio I.
Widmer, Remo N.
Casati, Nicola P. M.
Redfern, Simon Anthony Turner
Keywords: Science::Geology
Issue Date: 2020
Source: Seitkan, A., Lampronti, G. I., Widmer, R. N., Casati, N. P. M., & Redfern, S. A. T. (2020). Thermal behavior of iron arsenides under non-oxidizing conditions. ACS Omega, 5(12), 6423-6428. doi:10.1021/acsomega.9b03928
Journal: ACS Omega 
Abstract: Fe2As has been studied in situ by synchrotron powder X-ray diffraction (PXRD) over the range of temperatures 25–850 °C and under a neutral atmosphere to understand its thermal behavior, which is potentially important for gold extraction. For the first time, incongruent high-temperature reactions of Fe2As are observed as it breaks down and the existence of a previously undiscovered high-temperature FeAs phase with an NiAs-type structure has been determined experimentally. No evidence has been found for the existence of the high-temperature Fe3As2 phase. Hence, the previously published phase diagram for the Fe–As system has to be modified accordingly.
ISSN: 2470-1343
DOI: 10.1021/acsomega.9b03928
Schools: Asian School of the Environment 
Rights: © 2020 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY)License, which permits unrestricted use, distribution and reproduction in any medium,provided the author and source are cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ASE Journal Articles

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