Synthesis of Pr6O11 Doped Zinc Varistors by High-Energy Milling

Abstract:

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High voltage zinc varistors was synthesized by high energy milling with Pr6O11 doped ZnO-Bi2O3 system as raw materials. The effects of milling time and sintering temperature on the electrical properties were investigated. The results show that high-energy milling decreases the sintering temperature of the ZnO varistors. The material derived from high-energy milling exhibit high density and good electrical properties at the sintering temperature from 1080 to 1180°C. The samples sintered at 1100 °C have average crystalline grain size of about 5 µm with the optimum values of electrical properties, gradient voltage V1mA is 371 V/mm, leakage current IL is 0.62 µA, non linear coefficient α is 60.

Info:

Periodical:

Advanced Materials Research (Volumes 105-106)

Edited by:

Wei Pan and Jianghong Gong

Pages:

314-316

DOI:

10.4028/www.scientific.net/AMR.105-106.314

Citation:

G. Q. Qi et al., "Synthesis of Pr6O11 Doped Zinc Varistors by High-Energy Milling", Advanced Materials Research, Vols. 105-106, pp. 314-316, 2010

Online since:

April 2010

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Price:

$35.00

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