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Fe₀.₇₉Si₀.₀₇B₀.₁₄ metallic glass gaskets for high-pressure research beyond 1Mbar

Title data

Dong, Weiwei ; Glazyrin, Konstantin ; Khandarkhaeva, Saiana ; Fedotenko, Timofey ; Bednarčík, Jozef ; Greenberg, Eran ; Dubrovinsky, Leonid ; Dubrovinskaia, Natalia ; Liermann, Hanns-Peter:
Fe₀.₇₉Si₀.₀₇B₀.₁₄ metallic glass gaskets for high-pressure research beyond 1Mbar.
In: Journal of Synchrotron Radiation. Vol. 29 (2022) Issue 5 . - pp. 1167-1179.
ISSN 1600-5775
DOI: https://doi.org/10.1107/S1600577522007573

Official URL: Volltext

Abstract in another language

A gasket is an important constituent of a diamond anvil cell (DAC) assembly, responsible for the sample chamber stability at extreme conditions for X-ray diffraction studies. In this work, we studied the performance of gaskets made of metallic glass Fe0.79Si0.07B0.14 in a number of high-pressure X-ray diffraction (XRD) experiments in DACs equipped with conventional and toroidal-shape diamond anvils. The experiments were conducted in either axial or radial geometry with X-ray beams of micrometre to sub-micrometre size. We report that Fe0.79Si0.07B0.14 metallic glass gaskets offer a stable sample environment under compression exceeding 1 Mbar in all XRD experiments described here, even in those involving small-molecule gases (e.g. Ne, H2) used as pressure-transmitting media or in those with laser heating in a DAC. Our results emphasize the material's importance for a great number of delicate experiments conducted under extreme conditions. They indicate that the application of Fe0.79Si0.07B0.14 metallic glass gaskets in XRD experiments for both axial and radial geometries substantially improves various aspects of megabar experiments and, in particular, the signal-to-noise ratio in comparison to that with conventional gaskets made of Re, W, steel or other crystalline metals.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: diamond anvil cell (DAC); amorphous metal gasket; metallic glass; axial and radial high-pressure X-ray diffraction; signal-to-noise ratio
Institutions of the University: Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions > Professor Materials Physics and Technology at Extreme Conditions - Univ.-Prof. Dr. Natalia Doubrovinckaia
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 16 Sep 2022 07:04
Last Modified: 12 Oct 2022 10:28
URI: https://eref.uni-bayreuth.de/id/eprint/71847