scholarly journals Influence of Sintering Temperature and ZrO2 Dopants on the Microstructure and Electrical Properties of Zinc Oxide Varistors

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 140126-140133 ◽  
Author(s):  
Pengkang Xie ◽  
Jianping Hu
Keyword(s):  
Zinc Oxide ◽  
Electrical Properties ◽  
Sintering Temperature ◽  
Zinc Oxide Varistors

Chemical preparation and properties of high-field zinc oxide varistors

1986 ◽  
Vol 1 (1) ◽  
pp. 90-99 ◽  
Author(s):  
R. G. Dosch ◽  
B. A. Tuttle ◽  
R. A. Brooks
Keyword(s):  
Zinc Oxide ◽  
Electric Fields ◽  
High Field ◽  
Sintering Temperature ◽  
Chemical Preparation ◽  
Preparation Methods ◽  
Current Densities ◽  
Zno Varistors ◽  
Precursor Powders ◽  
Zinc Oxide Varistors

Chemical preparation methods were developed for high-field ZnO varistors which used precipitation techniques to prepare precursor powders. Varistors were made by sintering uniaxially pressed pellets in the range of 675°–740 °C in air. Properties of these varistors included electric fields (E) in the 10–100 kV/cm range at current densities (J) of 5 A/cm2, nonlinearity coefficients (α) greater than 30 for 2.5≤J≤5.O A/cm2, and densities in the range of 65%-99% of theoretical depending both on sintering temperature and composition.

Influence of the preparation process on the electrical properties of high-field co-doped zinc oxide varistors

2013 ◽  
Vol 39 (8) ◽  
pp. 8869-8875 ◽  
Author(s):  
Geoffroy Gadacz ◽  
Sophie Beaudet-Savignat ◽  
Laurence Longuet ◽  
Jean-Louis Longuet
Keyword(s):  
Zinc Oxide ◽  
Electrical Properties ◽  
High Field ◽  
Preparation Process ◽  
Zinc Oxide Varistors ◽  
Co Doped
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