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Impulse Aging Behavior of ZnO–V2O5-Based Varistors withNb2O5 Addition (2011)

Choon-W. Nahm

Wiley

In: Journal of the American Ceramic Society

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Publication Date: 2011-04-02

Description: The effect of Nb 2 O 5 addition on impulse aging behavior of ZnO–V 2 O 5 –MnO 2 –Co 3 O 4 –Dy 2 O 3 -based varistors was investigated. The varistors doped with 0.25 mol% Nb 2 O 5 exhibited the best clamp characteristics, in which the clamp voltage ratio was in the range of K =1.65–2.50 at an impulse current of 1–50 A. The varistors doped with 0.1 mol% Nb 2 O 5 exhibited the best electrical stability by marking %Δ E 1 mA =−1.0%, %Δα=−2.8%, and %Δ J L =31.5% after applying the impulse current of 100 A.

Print ISSN: 0002-7820

Electronic ISSN: 1551-2916

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

Published by Wiley

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