Effects of the sodium ions addition on the varistor properties of ZnO-Co3O4-Pr6O11 ceramics

被引：3

作者：

Shen, Yu-Min ^{[1
]}

Hsiang, Hsing-, I ^{[2
]}

机构：

[1] Natl Cheng Kung Univ, Hierarch Green Energy Mat Res Ctr, Tainan, Taiwan

[2] Natl Cheng Kung Univ, Particulate Res Ctr, Dept Resources Engn, Tainan, Taiwan

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2021年 / 32卷 / 24期

关键词：

LIQUID-PHASE; ZNO; MICROSTRUCTURE; OXYGEN;

D O I：

10.1007/s10854-021-07279-2

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：

The effects of Na+ ions addition on the crystalline phases, microstructures, and varistor characteristics of ZnO-Co3O4-Pr6O11 ceramics were investigated using an X-ray diffractometer (XRD), scanning electron microscopy (SEM), and the electron probe microanalysis method (EPMA). The results indicate that the oxygen vacancies existing in Pr6O11 due to the substitution of Na+ for Pr ion could enhance the phase stability of Pr6O11, decrease the evaporation of Pr and promote the oxygen migration along the grain boundaries and oxygen ions chemisorbed at the grain boundaries. Therefore, the addition of sodium ions can effectively enhance the varistor properties of ZnO-Co3O4-Pr6O11 ceramics.

引用

页码：28935 / 28941

页数：7

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