The effect of CaO addition on the microstructural, mechanical and dielectric properties of pure MgO ceramic

Sutjipto, Agus Geter Edy (2007) The effect of CaO addition on the microstructural, mechanical and dielectric properties of pure MgO ceramic. Key Engineering Materials, 345-46. pp. 1609-1612. ISSN 1013-9826

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Abstract

High purity MgO is a common ceramic material used as a protecting layer in an alternating current plasma display panel (AC-PDP). In this work, pure MgO was added by CaO for a better protecting layer. The effect of CaO addition was discussed according to the changes in the microstructure, mechanical strength and the ability of the sample to withstand surface breakdown (flashover) with various CaO addition in the powder mixture. In addition, it was found that 2.5 wt% CaO-addition shows a better electrical discharge. Since secondary electron emission coefficient contributes in the electrical discharge, it could be predicted that the 2.5 wt% CaO added MgO has a higher secondary electron emission constant and becomes a promising candidate for a protecting layer in AC-PDP.

Item Type:	Article (Journal)
Additional Information:	4703/8680
Uncontrolled Keywords:	flashover, secondary electron emission, MgO, CaO, microstructural, dielectric, protecting layer
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Agus Geter Edy Sutjipto
Date Deposited:	06 Apr 2012 15:32
Last Modified:	06 Apr 2012 15:32
URI:	http://irep.iium.edu.my/id/eprint/8680

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