吴鹏程,梁炳亮,任剑怡,张乐,杨开怀,吴新根

• 1:南昌航空大学材料科学与工程学院
• 2:江西省金属材料微结构调控重点实验室
• 3:福建船政交通职业学院机械与智能制造学院
• 4:江西晶安高科技股份有限公司

摘要(Abstract)：

高熵氧化物陶瓷由于独特的结构及新奇的“高熵效应”而表现出优异的性能。为制得高灵敏度和高稳定性的NTC热敏电阻，采用固相反应法制备了(FeCoCrMnZn)_3O_4高熵热敏陶瓷，研究制备工艺对其物相组成、显微结构和电学性能的影响。结果表明：(FeCoCrMnZn)_3O_4粉体在900℃煅烧即可形成尖晶石结构的单相固溶体，(FeCoCrMnZn)_3O_4陶瓷中各元素均匀分布，符合高熵化特征，其室温电阻率高达142.5 kΩ·cm,热敏常数B值高达4487 K,而电阻漂移率仅为1.22%(1425℃,4 h)。总之，(FeCoCrMnZn)_3O_4高熵热敏陶瓷具有良好的NTC特性，较普通NTC热敏电阻而言，具有更高的电阻率、B值及稳定性，可用于抑制大功率电器产生的浪涌电流及温度的检测和控制等。

关键词(KeyWords)： 高熵氧化物陶瓷;NTC热敏电阻;尖晶石结构;固相反应法;电学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51664043);; 江西省金属材料微结构调控重点实验室(南昌航空大学)开放基金(EJ202101423);; 国家留学基金委公派访问学者项目(201708360036);; 南昌航空大学三小项目(2022CL052);; 福建省高等职业院校应用技术协同创新中心建设项目(闽教科[2016]71号)

作者(Author): 吴鹏程,梁炳亮,任剑怡,张乐,杨开怀,吴新根

DOI: 10.14106/j.cnki.1001-2028.2023.1741

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