High pressure neutron powder diffraction study of Fe1−xCr x with and without hydrogen exposure

Oleg Rivin; Amir Broide; Silvie Maskova; Matthew S. Lucas; Amir Hen; Itzhak Orion; Shai Salhov; Michael Shandalov; Antonio Moreira Dos Santos; Jamie Molaison; Zhiqiang Chen; Itzhak Halevy

doi:10.1007/s10751-014-1104-x

High pressure neutron powder diffraction study of Fe_1−xCr_x with and without hydrogen exposure

Oleg Rivin^*, Amir Broide, Silvie Maskova, Matthew S. Lucas, Amir Hen, Itzhak Orion, Shai Salhov, Michael Shandalov, Antonio Moreira Dos Santos, Jamie Molaison, Zhiqiang Chen, Itzhak Halevy

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The crystal structure of Fe_1−xCr_x(x = 0, 0.2 and 0.4) materials, with and without exposure to Hydrogen, is investigated using neutron powder diffraction under the applied external high-pressure. Above a certain applied pressure, P_C, a structural phase transition, from cubic to hexagonal symmetry, is observed, in agreement with previous x-ray diffraction results. The P_C values exhibit an increase with x increase. The possibility for an evolution of a magnetic structure with pressure, x and Hydrogen exposure, is examined. Finally, a broadening of the angular profile of the (200) reflection (cubic phase) is identified and reported.

Original language	English
Pages (from-to)	29-36
Number of pages	8
Journal	Hyperfine Interactions
Volume	231
Issue number	1-3
DOIs	https://doi.org/10.1007/s10751-014-1104-x
State	Published - 1 Apr 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014, Springer International Publishing Switzerland.

Keywords

Fe-Cr
High-Pressure
Hydrogen exposure
Neutron diffraction

Access to Document

10.1007/s10751-014-1104-x

Cite this

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title = "High pressure neutron powder diffraction study of Fe1−xCr x with and without hydrogen exposure",

abstract = "The crystal structure of Fe1−xCrx(x = 0, 0.2 and 0.4) materials, with and without exposure to Hydrogen, is investigated using neutron powder diffraction under the applied external high-pressure. Above a certain applied pressure, PC, a structural phase transition, from cubic to hexagonal symmetry, is observed, in agreement with previous x-ray diffraction results. The PC values exhibit an increase with x increase. The possibility for an evolution of a magnetic structure with pressure, x and Hydrogen exposure, is examined. Finally, a broadening of the angular profile of the (200) reflection (cubic phase) is identified and reported.",

keywords = "Fe-Cr, High-Pressure, Hydrogen exposure, Neutron diffraction",

author = "Oleg Rivin and Amir Broide and Silvie Maskova and Lucas, {Matthew S.} and Amir Hen and Itzhak Orion and Shai Salhov and Michael Shandalov and {Moreira Dos Santos}, Antonio and Jamie Molaison and Zhiqiang Chen and Itzhak Halevy",

note = "Publisher Copyright: {\textcopyright} 2014, Springer International Publishing Switzerland.",

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doi = "10.1007/s10751-014-1104-x",

language = "אנגלית",

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T1 - High pressure neutron powder diffraction study of Fe1−xCr x with and without hydrogen exposure

AU - Rivin, Oleg

AU - Broide, Amir

AU - Maskova, Silvie

AU - Lucas, Matthew S.

AU - Hen, Amir

AU - Orion, Itzhak

AU - Salhov, Shai

AU - Shandalov, Michael

AU - Moreira Dos Santos, Antonio

AU - Molaison, Jamie

AU - Chen, Zhiqiang

AU - Halevy, Itzhak

PY - 2015/4/1

Y1 - 2015/4/1

N2 - The crystal structure of Fe1−xCrx(x = 0, 0.2 and 0.4) materials, with and without exposure to Hydrogen, is investigated using neutron powder diffraction under the applied external high-pressure. Above a certain applied pressure, PC, a structural phase transition, from cubic to hexagonal symmetry, is observed, in agreement with previous x-ray diffraction results. The PC values exhibit an increase with x increase. The possibility for an evolution of a magnetic structure with pressure, x and Hydrogen exposure, is examined. Finally, a broadening of the angular profile of the (200) reflection (cubic phase) is identified and reported.

AB - The crystal structure of Fe1−xCrx(x = 0, 0.2 and 0.4) materials, with and without exposure to Hydrogen, is investigated using neutron powder diffraction under the applied external high-pressure. Above a certain applied pressure, PC, a structural phase transition, from cubic to hexagonal symmetry, is observed, in agreement with previous x-ray diffraction results. The PC values exhibit an increase with x increase. The possibility for an evolution of a magnetic structure with pressure, x and Hydrogen exposure, is examined. Finally, a broadening of the angular profile of the (200) reflection (cubic phase) is identified and reported.

KW - Fe-Cr

KW - High-Pressure

KW - Hydrogen exposure

KW - Neutron diffraction

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