Microstructure and thermal-mechanical evolution of high-entropy pyrochlore (A2B2O7) with dual crystalline phase

Chemical complex solid solutions with dual-phases were successfully synthesized through solid-state reaction with its thermal-mechanical behavior subjected to proton irradiation were characterized. The dual-phase structural solid solutions demonstrate reduced thermal conductivity and enhanced mechan...

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Main Authors: Kun Yang, Minghao Zhao, Huan Li, Chengying Bai
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Open Ceramics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666539524001871
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author Kun Yang
Minghao Zhao
Huan Li
Chengying Bai
author_facet Kun Yang
Minghao Zhao
Huan Li
Chengying Bai
author_sort Kun Yang
collection DOAJ
description Chemical complex solid solutions with dual-phases were successfully synthesized through solid-state reaction with its thermal-mechanical behavior subjected to proton irradiation were characterized. The dual-phase structural solid solutions demonstrate reduced thermal conductivity and enhanced mechanical performance, which can be associated with its chemical disorder and lattice distortion. Radiation hardening can be observed for the sample pellets with slight surface amorphization occurring, resulting in a Ti-enriched alteration layer covered on the surface.
format Article
id doaj-art-e0c720c26d4940f38d19cd6bbbe2acee
institution DOAJ
issn 2666-5395
language English
publishDate 2025-03-01
publisher Elsevier
record_format Article
series Open Ceramics
spelling doaj-art-e0c720c26d4940f38d19cd6bbbe2acee2025-08-20T02:50:29ZengElsevierOpen Ceramics2666-53952025-03-012110072310.1016/j.oceram.2024.100723Microstructure and thermal-mechanical evolution of high-entropy pyrochlore (A2B2O7) with dual crystalline phaseKun Yang0Minghao Zhao1Huan Li2Chengying Bai3Department of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR ChinaDepartment of Nuclear Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR ChinaXi'an Rare Metal Materials Institute Co. Ltd., Xi'an, 710016, PR China; Corresponding author.Department of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150006, ChinaChemical complex solid solutions with dual-phases were successfully synthesized through solid-state reaction with its thermal-mechanical behavior subjected to proton irradiation were characterized. The dual-phase structural solid solutions demonstrate reduced thermal conductivity and enhanced mechanical performance, which can be associated with its chemical disorder and lattice distortion. Radiation hardening can be observed for the sample pellets with slight surface amorphization occurring, resulting in a Ti-enriched alteration layer covered on the surface.http://www.sciencedirect.com/science/article/pii/S2666539524001871PyrochloreDual-phaseHigh-entropyIrradiationThermal conductivity
spellingShingle Kun Yang
Minghao Zhao
Huan Li
Chengying Bai
Microstructure and thermal-mechanical evolution of high-entropy pyrochlore (A2B2O7) with dual crystalline phase
Open Ceramics
Pyrochlore
Dual-phase
High-entropy
Irradiation
Thermal conductivity
title Microstructure and thermal-mechanical evolution of high-entropy pyrochlore (A2B2O7) with dual crystalline phase
title_full Microstructure and thermal-mechanical evolution of high-entropy pyrochlore (A2B2O7) with dual crystalline phase
title_fullStr Microstructure and thermal-mechanical evolution of high-entropy pyrochlore (A2B2O7) with dual crystalline phase
title_full_unstemmed Microstructure and thermal-mechanical evolution of high-entropy pyrochlore (A2B2O7) with dual crystalline phase
title_short Microstructure and thermal-mechanical evolution of high-entropy pyrochlore (A2B2O7) with dual crystalline phase
title_sort microstructure and thermal mechanical evolution of high entropy pyrochlore a2b2o7 with dual crystalline phase
topic Pyrochlore
Dual-phase
High-entropy
Irradiation
Thermal conductivity
url http://www.sciencedirect.com/science/article/pii/S2666539524001871
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AT minghaozhao microstructureandthermalmechanicalevolutionofhighentropypyrochlorea2b2o7withdualcrystallinephase
AT huanli microstructureandthermalmechanicalevolutionofhighentropypyrochlorea2b2o7withdualcrystallinephase
AT chengyingbai microstructureandthermalmechanicalevolutionofhighentropypyrochlorea2b2o7withdualcrystallinephase