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Revisiting the High-Pressure Behaviors of Zirconium: Nonhydrostaticity Promoting the Phase Transitions and Absence of the Isostructural Phase Transition in β-Zirconium

Zirconium (Zr) is an important industrial metal that is widely used in nuclear engineering, chemical engineering, and space and aeronautic engineering because of its unique properties. The high-pressure behaviors of Zr have been widely investigated in the past several decades. However, the controver...

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Autores principales: Liu, Lei, Jing, Qiumin, Geng, Hua Y., Li, Yinghua, Zhang, Yi, Li, Jun, Li, Shourui, Chen, Xiaohui, Gao, Junjie, Wu, Qiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384753/
https://www.ncbi.nlm.nih.gov/pubmed/37512431
http://dx.doi.org/10.3390/ma16145157
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author Liu, Lei
Jing, Qiumin
Geng, Hua Y.
Li, Yinghua
Zhang, Yi
Li, Jun
Li, Shourui
Chen, Xiaohui
Gao, Junjie
Wu, Qiang
author_facet Liu, Lei
Jing, Qiumin
Geng, Hua Y.
Li, Yinghua
Zhang, Yi
Li, Jun
Li, Shourui
Chen, Xiaohui
Gao, Junjie
Wu, Qiang
author_sort Liu, Lei
collection PubMed
description Zirconium (Zr) is an important industrial metal that is widely used in nuclear engineering, chemical engineering, and space and aeronautic engineering because of its unique properties. The high-pressure behaviors of Zr have been widely investigated in the past several decades. However, the controversies still remain in terms of the phase transition (PT) pressures and the isostructural PT in β-Zr: why the PT pressure in Zr is so scattered, and whether the β to β’ PT exists. In the present study, to address these two issues, the Zr sample with ultra-high purity (>99.99%) was quasi-hydrostatically compressed up to ~70 GPa. We discovered that both the purity and the stress state of the sample (the grade of hydrostaticity/nonhydrosaticity) affect the PT pressure of Zr, while the stress state is the dominant factor, the nonhydrostaticity significantly promotes the PT of Zr. We also propose two reasons why the β-β’ isostructural PT was absent in the subsequent and present experiments, which call for further investigation of Zr under quasi-compression up to 200 GPa or even higher pressures.
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spelling pubmed-103847532023-07-30 Revisiting the High-Pressure Behaviors of Zirconium: Nonhydrostaticity Promoting the Phase Transitions and Absence of the Isostructural Phase Transition in β-Zirconium Liu, Lei Jing, Qiumin Geng, Hua Y. Li, Yinghua Zhang, Yi Li, Jun Li, Shourui Chen, Xiaohui Gao, Junjie Wu, Qiang Materials (Basel) Article Zirconium (Zr) is an important industrial metal that is widely used in nuclear engineering, chemical engineering, and space and aeronautic engineering because of its unique properties. The high-pressure behaviors of Zr have been widely investigated in the past several decades. However, the controversies still remain in terms of the phase transition (PT) pressures and the isostructural PT in β-Zr: why the PT pressure in Zr is so scattered, and whether the β to β’ PT exists. In the present study, to address these two issues, the Zr sample with ultra-high purity (>99.99%) was quasi-hydrostatically compressed up to ~70 GPa. We discovered that both the purity and the stress state of the sample (the grade of hydrostaticity/nonhydrosaticity) affect the PT pressure of Zr, while the stress state is the dominant factor, the nonhydrostaticity significantly promotes the PT of Zr. We also propose two reasons why the β-β’ isostructural PT was absent in the subsequent and present experiments, which call for further investigation of Zr under quasi-compression up to 200 GPa or even higher pressures. MDPI 2023-07-21 /pmc/articles/PMC10384753/ /pubmed/37512431 http://dx.doi.org/10.3390/ma16145157 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Lei
Jing, Qiumin
Geng, Hua Y.
Li, Yinghua
Zhang, Yi
Li, Jun
Li, Shourui
Chen, Xiaohui
Gao, Junjie
Wu, Qiang
Revisiting the High-Pressure Behaviors of Zirconium: Nonhydrostaticity Promoting the Phase Transitions and Absence of the Isostructural Phase Transition in β-Zirconium
title Revisiting the High-Pressure Behaviors of Zirconium: Nonhydrostaticity Promoting the Phase Transitions and Absence of the Isostructural Phase Transition in β-Zirconium
title_full Revisiting the High-Pressure Behaviors of Zirconium: Nonhydrostaticity Promoting the Phase Transitions and Absence of the Isostructural Phase Transition in β-Zirconium
title_fullStr Revisiting the High-Pressure Behaviors of Zirconium: Nonhydrostaticity Promoting the Phase Transitions and Absence of the Isostructural Phase Transition in β-Zirconium
title_full_unstemmed Revisiting the High-Pressure Behaviors of Zirconium: Nonhydrostaticity Promoting the Phase Transitions and Absence of the Isostructural Phase Transition in β-Zirconium
title_short Revisiting the High-Pressure Behaviors of Zirconium: Nonhydrostaticity Promoting the Phase Transitions and Absence of the Isostructural Phase Transition in β-Zirconium
title_sort revisiting the high-pressure behaviors of zirconium: nonhydrostaticity promoting the phase transitions and absence of the isostructural phase transition in β-zirconium
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384753/
https://www.ncbi.nlm.nih.gov/pubmed/37512431
http://dx.doi.org/10.3390/ma16145157
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