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http://hdl.handle.net/10397/63766
Title: | Chemical degradation in ZnO-based varistors | Other Title: | ZnO壓敏電阻的化學蛻變 | Authors: | Li, BR Chen, WP Chan, HLW |
Issue Date: | 2002 | Source: | 电子元件与材料 (Electronic components & materials), 2002, v. 21, no. 4, p. 12-14 | Abstract: | ZnO varistors being placed in a 0.05 mol/L NaOH solution to be DC electrolyzed can lead to increased leakage current, weakened nonlinear characteristic and other degradation phenomena. After heat treatment at 650℃, its characteristic can be recovered. The mechanism is different from conventional electrical degradation. It is proved that it is the hydrogen atoms produce reduction reaction round the grain boundaries of the ceramics. The possible degradation mechanism is also discussed. | Keywords: | Varistors Chemical degradation Degradation mechanism Reduction with hydrogen |
Publisher: | 中国电子学会元件分会 | Journal: | 电子元件与材料 (Electronic components & materials) | ISSN: | 1001-2028 | Rights: | © 2002 中国学术期刊电子杂志出版社。本内容的使用仅限于教育、科研之目的。 © 2002 China Academic Journal Electronic Publishing House. It is to be used strictly for educational and research purposes. |
Appears in Collections: | Journal/Magazine Article |
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