UNSPECIFIED (2004) Improvement of toughness of Y-ZrO2: Role of dopant distribution. In: 8th Conference of the European-Ceramic-Society, JUN 29-JUL 03, 2003, Istanbul, TURKEY.

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Abstract

Among all the advanced ceramics, yttria stabilized tetragonal zirconia (Y-TZP) ceramics are known to be one of the toughest single phase oxide materials. Till to date, the research on this class of ceramics is mostly concentrated on understanding the influence of grain size and dopant content on transformation toughening. The present research focusses on the understanding the role of yttria distribution on transformation toughening. To this end, 8 mol% yttria stabilized zirconia powders are mixed with various amounts of Y-free monoclinic zirconia powders to obtain varying yttria content in the sintered ceramics. The microstructure characterization is carried out using XRD, EPMA and SEM. For the first time, the present research has demonstrated that the mechanical property, in particular the indentation toughness of 8Y-TZP can be improved and tailored by addition of varying amount of yttria free monoclinic zirconia particles.

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. 817-820
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/8120

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