Processing of zinc oxide varistors : sources of defects and possible measures for their elimination

The processing of ZnO varistors primarily follows the conventional ceramic route. A number of dopants are added to zinc oxide powder to prepare the constituent material and some additional finishing operations are performed for securing the varistor action. Thus there involved a large number of proc...

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Main Authors:	Karim, A. N. Mustafizul, Begum, Shahida, Hashmi, M. S. J.
Other Authors:	Predeleanu, M
Format:	Article
Language:	English
Published:	Elsivier Science B. V. 1997
Subjects:	T58.7 Production capacity. Manufacturing capacity
Online Access:	http://irep.iium.edu.my/26857/ http://irep.iium.edu.my/26857/ http://irep.iium.edu.my/26857/ http://irep.iium.edu.my/26857/1/Defect_sources_%2304.pdf

id	iium-26857
recordtype	eprints
spelling	iium-268572013-05-19T03:28:20Z http://irep.iium.edu.my/26857/ Processing of zinc oxide varistors : sources of defects and possible measures for their elimination Karim, A. N. Mustafizul Begum, Shahida Hashmi, M. S. J. T58.7 Production capacity. Manufacturing capacity The processing of ZnO varistors primarily follows the conventional ceramic route. A number of dopants are added to zinc oxide powder to prepare the constituent material and some additional finishing operations are performed for securing the varistor action. Thus there involved a large number of processing operations and there are naturally multiple sources from which defects can originate. To quality a varistor performance several parameters are commonly investigated of which energy absorption capability of the device is a significant one. In this respect flaws and defects developed in the varistor body during the processing have detrimental effects and can considerably restrict the energy absorption capability. This paper briefly outlines the probable sources of defects of the metal-oxide varistor device and their possible solutions mainly with sintering orientation, passivation thickness and electrode area. Elsivier Science B. V. Predeleanu, M Gilormini, P. 1997 Article PeerReviewed application/pdf en http://irep.iium.edu.my/26857/1/Defect_sources_%2304.pdf Karim, A. N. Mustafizul and Begum, Shahida and Hashmi, M. S. J. (1997) Processing of zinc oxide varistors : sources of defects and possible measures for their elimination. Studies in Applied Mechanics, 45 (C). pp. 143-153. ISSN 0922-5382 http://www.elsevier.com/books/book-series/studies-in-applied-mechanics 10.1016/S0922-5382(97)80016-5
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	T58.7 Production capacity. Manufacturing capacity
spellingShingle	T58.7 Production capacity. Manufacturing capacity Karim, A. N. Mustafizul Begum, Shahida Hashmi, M. S. J. Processing of zinc oxide varistors : sources of defects and possible measures for their elimination
description	The processing of ZnO varistors primarily follows the conventional ceramic route. A number of dopants are added to zinc oxide powder to prepare the constituent material and some additional finishing operations are performed for securing the varistor action. Thus there involved a large number of processing operations and there are naturally multiple sources from which defects can originate. To quality a varistor performance several parameters are commonly investigated of which energy absorption capability of the device is a significant one. In this respect flaws and defects developed in the varistor body during the processing have detrimental effects and can considerably restrict the energy absorption capability. This paper briefly outlines the probable sources of defects of the metal-oxide varistor device and their possible solutions mainly with sintering orientation, passivation thickness and electrode area.
author2	Predeleanu, M
author_facet	Predeleanu, M Karim, A. N. Mustafizul Begum, Shahida Hashmi, M. S. J.
format	Article
author	Karim, A. N. Mustafizul Begum, Shahida Hashmi, M. S. J.
author_sort	Karim, A. N. Mustafizul
title	Processing of zinc oxide varistors : sources of defects and possible measures for their elimination
title_short	Processing of zinc oxide varistors : sources of defects and possible measures for their elimination
title_full	Processing of zinc oxide varistors : sources of defects and possible measures for their elimination
title_fullStr	Processing of zinc oxide varistors : sources of defects and possible measures for their elimination
title_full_unstemmed	Processing of zinc oxide varistors : sources of defects and possible measures for their elimination
title_sort	processing of zinc oxide varistors : sources of defects and possible measures for their elimination
publisher	Elsivier Science B. V.
publishDate	1997
url	http://irep.iium.edu.my/26857/ http://irep.iium.edu.my/26857/ http://irep.iium.edu.my/26857/ http://irep.iium.edu.my/26857/1/Defect_sources_%2304.pdf
first_indexed	2023-09-18T20:39:56Z
last_indexed	2023-09-18T20:39:56Z
_version_	1777409297688297472

Processing of zinc oxide varistors : sources of defects and possible measures for their elimination

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