The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic

This paper introduces the use of a scanning electron microscope (SEM) to evaluate the insulation property of insulators under electron bombardment. An SEM may be used not only to observe a surface image but also to provide a fine electron beam for charging an insulator surface simultaneously. The di...

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Main Authors:	Sutjipto, Agus Geter Edy, Takata, Masasuke
Format:	Article
Language:	English
Published:	Springer Science+Business Media 2007
Subjects:	TA401 Materials of engineering and construction
Online Access:	http://irep.iium.edu.my/8676/ http://irep.iium.edu.my/8676/1/AGUS_-_Journal_of_Materials_Science_2007.pdf

id	iium-8676
recordtype	eprints
spelling	iium-86762012-04-06T07:38:53Z http://irep.iium.edu.my/8676/ The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic Sutjipto, Agus Geter Edy Takata, Masasuke TA401 Materials of engineering and construction This paper introduces the use of a scanning electron microscope (SEM) to evaluate the insulation property of insulators under electron bombardment. An SEM may be used not only to observe a surface image but also to provide a fine electron beam for charging an insulator surface simultaneously. The distribution of electric field created by the surface charging can be developed by a simple model. The increase of electric field at the surface may exceed a critical value to experience a surface breakdown/optically-visible flashover. The insulation property is evaluated by measuring the period of charging/ electron bombardment, which is needed to initiate a treeing- formation (hereinafter time to flashover treeing/TTF). In this paper, under a 25 keV primary electron beam energy and for a magnification of 5000·, a 99.95% purity polycrystalline MgO specimen resulted in 7 min TTF. It was also observed that increasing the primary beam energy and the SEM’s magnification decreased the TTF. Therefore, at for a given energy and magnification, this method can be used to evaluate the insulation property of insulators under an electron beam environment. Springer Science+Business Media 2007-04-06 Article PeerReviewed application/pdf en http://irep.iium.edu.my/8676/1/AGUS_-_Journal_of_Materials_Science_2007.pdf Sutjipto, Agus Geter Edy and Takata, Masasuke (2007) The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic. Journal of Materials Science, 42. pp. 6036-6040. ISSN 1573-4803 (O), 0022-2461 (P)
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TA401 Materials of engineering and construction
spellingShingle	TA401 Materials of engineering and construction Sutjipto, Agus Geter Edy Takata, Masasuke The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic
description	This paper introduces the use of a scanning electron microscope (SEM) to evaluate the insulation property of insulators under electron bombardment. An SEM may be used not only to observe a surface image but also to provide a fine electron beam for charging an insulator surface simultaneously. The distribution of electric field created by the surface charging can be developed by a simple model. The increase of electric field at the surface may exceed a critical value to experience a surface breakdown/optically-visible flashover. The insulation property is evaluated by measuring the period of charging/ electron bombardment, which is needed to initiate a treeing- formation (hereinafter time to flashover treeing/TTF). In this paper, under a 25 keV primary electron beam energy and for a magnification of 5000·, a 99.95% purity polycrystalline MgO specimen resulted in 7 min TTF. It was also observed that increasing the primary beam energy and the SEM’s magnification decreased the TTF. Therefore, at for a given energy and magnification, this method can be used to evaluate the insulation property of insulators under an electron beam environment.
format	Article
author	Sutjipto, Agus Geter Edy Takata, Masasuke
author_facet	Sutjipto, Agus Geter Edy Takata, Masasuke
author_sort	Sutjipto, Agus Geter Edy
title	The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic
title_short	The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic
title_full	The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic
title_fullStr	The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic
title_full_unstemmed	The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic
title_sort	use of sem to investigate the effect of an electron beam on the optically-visible flashover treeing of mgo ceramic
publisher	Springer Science+Business Media
publishDate	2007
url	http://irep.iium.edu.my/8676/ http://irep.iium.edu.my/8676/1/AGUS_-_Journal_of_Materials_Science_2007.pdf
first_indexed	2023-09-18T20:18:26Z
last_indexed	2023-09-18T20:18:26Z
_version_	1777407944936128512

The use of SEM to investigate the effect of an electron beam on the optically-visible flashover treeing of MgO ceramic

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