Kutty, TRN and Ezhilvalavan, S (1996) Zinc oxide ceramic varistors formulated with barium orthosilicate for operation in the 3- 15 V battery range. In: Materials Letters, 27 (6). pp. 355-361.
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Vatistors working in the 3-15 V battery voltage range can be obtained from ZnO ceramics formulated with $Ba_2SiO_4$ as the extra additive. The presence of a large surface state density and a changing pattern of trap states at the grain boundary interfaces are more significant than large grain size in attaining lower breakdown voltages, yet preserving higher nonlinear coefficients (\alpha) up to 25.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier.|
|Keywords:||Low voltage varistors;ZnO ceramics;Grain boundaries;Surface states|
|Department/Centre:||Division of Chemical Sciences > Materials Research Centre|
|Date Deposited:||25 Jan 2007|
|Last Modified:||19 Sep 2010 04:34|
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