Phase Evolution in Mn1.6Zn0.2Ni0.6Mg0.2Al0.4O4 High-Entropy Oxide Films by Heat Treatment

被引：0
作者：
Ren, Wei [1 ,2 ]
Liu, Xianhai [2 ]
Wu, Wenting [3 ]
Wang, Weili [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Phys Sci & Technol, Xian 710072, Peoples R China
[2] Xian Univ Posts & Telecommun, Sch Sci, Xian 710121, Peoples R China
[3] North West Elect Power Design Inst, Xian 710075, Peoples R China
来源：
MATERIALS | 2024年 / 17卷 / 23期
基金：
中国国家自然科学基金;
关键词：
high-entropy oxide; spinel oxide; thermistor; anneal; conductive behavior; OPTICAL-PROPERTIES;
D O I：
10.3390/ma17235967
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, Mn-Zn-Ni-Mg-Al multi-layer films were annealed in air at different temperatures to form spinel-structured Mn1.6Zn0.2Ni0.6Mg0.2Al0.4O4 high-entropy oxide films. X-ray diffraction results demonstrate that the films possess a polycrystalline spinel phase as well as impurity phases: when annealed at 650 degrees C and 750 degrees C, MnO2 and Al2O3 impurity phases exist; at 950 degrees C, an Al2O3 impurity phase exists. Only at 850 degrees C does a pure spinel phase exist. However, the film at 750 degrees C exhibits the best conductive behavior, which indicates that the impurity phases may not have to be removed to maintain the best electrical properties of the film.
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页数：9
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