دورية أكاديمية
The Formation and Phase Stability of A-Site High-Entropy Perovskite Oxides
العنوان: | The Formation and Phase Stability of A-Site High-Entropy Perovskite Oxides |
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المؤلفون: | Junzhan Zhang, Shangyi Liu, Zhifeng Tian, Ying Zhang, Zongmo Shi |
المصدر: | Materials, Vol 16, Iss 6, p 2214 (2023) |
بيانات النشر: | MDPI AG, 2023. |
سنة النشر: | 2023 |
المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
مصطلحات موضوعية: | high-entropy perovskite oxides, size disorder, configurational entropy, tolerance factor, electronegativity difference, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
الوصف: | High entropy perovskite oxides (HEPOs) were a class of advanced ceramic materials, which had attracted much scientific attention in recent years. However, the effect of factors affecting the phase stability of high entropy perovskite oxides was still controversial. Herein, 17 kinds of A-site HEPOs were synthesized by solid-state methods, and several criteria for the formation of HEPOs and phase stability were investigated. Single-phase solid solutions were synthesized in 12 kinds of subsystems. The results show that the phase stability of a single-phase solid solution was affected by the size disorder and configurational entropy. The electronegativity difference was the key parameter to predict the evolution of the cubic/tetragonal phase, rather than the tolerance factor. Cubic HEPOs were easily formed when the electronegativity difference was |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 1996-1944 |
Relation: | https://www.mdpi.com/1996-1944/16/6/2214; https://doaj.org/toc/1996-1944 |
DOI: | 10.3390/ma16062214 |
URL الوصول: | https://doaj.org/article/c458206805d2440a90fe048afb37f489 |
رقم الأكسشن: | edsdoj.458206805d2440a90fe048afb37f489 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 19961944 |
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DOI: | 10.3390/ma16062214 |