NTC厚膜热敏电阻浆料Cu0.2Ni0.5Zn1.0Mn1.3O4的表征

IF 1.4 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Science of Sintering Pub Date : 2023-01-01 DOI:10.2298/sos230608036a

S. Aleksic, N. Obradović, N. Mitrović, M. Lukovic

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引用次数: 0

摘要

采用不同金属氧化物的混合物，在空气中1000℃/4h下进行固相反应，制备了Cu0.2Ni0.5Zn1.0 Mn1.3O4成分的定制热敏电阻粉末。将所得的热敏电阻粉体在行星球磨机和玛瑙磨机中进行长时间研磨，得到亚微米级粉体。利用XRD和SEM对所制备的热敏电阻粉体进行了进一步表征。将热敏电阻粉末压成小圆盘状试样，在1150℃/2h下烧结。并用XRD和SEM对烧结样品进行了表征。主要电性能如标称电阻R和热敏电阻指数因子B在气候试验室内进行了测量。然后，使用相同的粉末，有机载体和玻璃熔块制备厚膜糊状物。浆料印刷在氧化铝基板上，在150℃/30 min下干燥，在混合输送炉中850℃/10 min在空气中烧结。采用PdAg厚膜浆料在烧结的NTC热敏电阻层上印刷平面电极。并在气候试验室内对烧结厚膜热敏电阻的电性能进行了测试。所得结果可用于开发新型自热热敏电阻。

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Characterization of NTC thick film thermistor paste Cu0.2Ni0.5Zn1.0Mn1.3O4

A powder of Cu0.2Ni0.5Zn1.0 Mn1.3O4 composition for custom thermistor was prepared by using the respective mixture of metal oxides and solid state reaction at 1000 ?C/4h in air. The obtained thermistor powder was milled in the planetary ball mill and agate mill for a prolonged time to achieve submicron powder. The prepared thermistor powder was further characterized by using XRD and SEM techniques. After that, the thermistor powder was pressed into small disc-shaped samples and sintered at 1150 ?C/2h. The sintered samples were also characterized by using XRD and SEM. The main electrical properties such as nominal resistance R and thermistor exponential factor B were measured in the climatic test chamber. After that, the thick film paste was prepared using the same powder, an organic vehicle and a glass frit. The paste was printed on alumina substrate, dried at 150 ?C /30 min and sintered in air at 850 ?C /10 min in a hybrid conveyor furnace. Planar electrodes were printed on the sintered NTC thermistor layer using PdAg thick film paste. The electric properties of the sintered thick film thermistor were also measured in the climatic test chamber. The obtained results were used for development of novel self-heating thermistor applications.

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来源期刊

Science of Sintering 工程技术-材料科学：硅酸盐

CiteScore

2.50

自引率

46.70%

发文量

审稿时长

3.3 months

期刊介绍： Science of Sintering is a unique journal in the field of science and technology of sintering. Science of Sintering publishes papers on all aspects of theoretical and experimental studies, which can contribute to the better understanding of the behavior of powders and similar materials during consolidation processes. Emphasis is laid on those aspects of the science of materials that are concerned with the thermodynamics, kinetics and mechanism of sintering and related processes. In accordance with the significance of disperse materials for the sintering technology, papers dealing with the question of ultradisperse powders, tribochemical activation and catalysis are also published. Science of Sintering journal is published four times a year. Types of contribution: Original research papers, Review articles, Letters to Editor, Book reviews.