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Electrical characteristics and pulse degradation of ZnO varistors with Nb2O5 dopant (1995)

Li, Hui -Feng ; Xu, Yu -Chun ; Wang, Shi -Liang ; [et al.]

Springer

Journal of materials science 30 (1995), S. 5161-5165

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ISSN: 1573-4803

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Abstract The influence of Nb2O5 doping and pre-sintering of Nb2O5 with ZnO on electrical and pulse degradation characteristics of ZnO varistors has been investigated. Doping with a small amount of Nb2O5 worsened the electrical and pulse degradation characteristics. However, with 0.05–0.1 mol% Nb2O5, the electrical and pulse degradation characteristics were greatly improved, but further doping with Nb2O5 had little influence. Pre-sintering of Nb2O5 with ZnO at 1000–1100 °C greatly improved the electrical and pulse degradation characteristics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00356064

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