UNSPECIFIED (2004) Transparent fine-grained oxide ceramics. In: 8th Conference of the European-Ceramic-Society, JUN 29-JUL 03, 2003, Istanbul, TURKEY.

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Abstract

The optical quality of fine-grained MgAl2O4 and Al2O3 ceramics has been determined and related to microstructure. Optimised MgAl2O4 was found to possess exceptional transparency (75% through 1.05 mm) and a low total scattering coefficient. The transparency of fine-grained (0.45 mum) alumina was significantly less (39% through 0.62 mm) due to a combination of grain boundary scattering and residual porosity. A clear trend of increased transparency with decreases in grain size was observed for Al2O3, which is consistent with a change in scattering mechanism as the grain size approaches the wavelength of the light. A definitive measure of the optical quality of an optimum fine-grained Al2O3 is provided by expressing the total scattering coefficient as a function of wavelength.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	T Technology > TP Chemical technology T Technology > TA Engineering (General). Civil engineering (General)
Series Name:	KEY ENGINEERING MATERIALS
Journal or Publication Title:	EURO CERAMICS VIII, PTS 1-3
Publisher:	TRANS TECH PUBLICATIONS LTD
ISBN:	0-87849-946-6
ISSN:	1013-9826
Editor:	Mandal, H and Ovecoglu, L
Date:	2004
Volume:	264-268
Number:	Part 1-3
Number of Pages:	4
Page Range:	pp. 801-804
Publication Status:	Published
Title of Event:	8th Conference of the European-Ceramic-Society
Location of Event:	Istanbul, TURKEY
Date(s) of Event:	JUN 29-JUL 03, 2003
URI:	http://wrap.warwick.ac.uk/id/eprint/8119

Data sourced from Thomson Reuters' Web of Knowledge

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