共 50 条
Design and synthesis of thermistor materials with high aging stability: Multicomponent equiatomic Mn-Co-Ni-Al-Zn-O ceramics
被引:15
|作者:
Fan, Liangchen
[1
]
Yao, Jincheng
[1
]
Huo, Peng
[1
,2
]
Wang, Bing
[1
,2
]
Liu, Zunjing
[1
,2
]
Zhao, Pengjun
[1
]
Chang, Aimin
[1
]
Wang, Junhua
[1
]
机构:
[1] Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Key Lab Elect Informat Mat & Devices, Xinjiang Tech Inst Phys & Chem, 40-1 South Beijing Rd, Urumqi, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
基金:
中国国家自然科学基金;
关键词:
NTC thermistors;
Electrical properties;
Microstructure;
Aging performance;
ELECTRICAL-PROPERTIES;
MAGNETIC-PROPERTIES;
CRYSTAL-STRUCTURE;
ENTROPY STATE;
MANGANITE;
EVOLUTION;
OXIDATION;
D O I:
10.1016/j.mssp.2022.107263
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
High entropy oxide (HEO) is a new class of ceramic materials. It is well known for its unique microstructure and remarkable property. In this work, a multicomponent equiatomic Mn-Co-Ni-Al-Zn-O oxide was synthesized using a solid-state reaction route based on entropic engineering. The phase composition of the samples was investigated, which showed the formation of two main phases: Fm 3 m for the rock salt phase and Fd 3 m for the spinel phase. In addition, the electrical behavior of Mn-Co-Ni-Al-Zn-O ceramic was investigated. The 5-cation ceramic exhibits extremely high aging stability with a resistance drift of 0.27% under accelerated aging con-ditions at 125 degrees C for 500 h. In contrast, the aging drift rate of the 4-cation samples is at approximately 2%. It was found that the design of multicomponent equiatomic oxide brings a significant benefit to the aging stability of the material. Thus, it provides an opportunity to improve the aging stability.
引用
收藏
页数:8
相关论文