Majumdar, A and Jana, S (2000) Yttria doped zirconia in glassy matrix useful for thermal barrier coating. Materials Letters, 44 (3-4). 197 -202. ISSN 0167-577X

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Abstract

Properties of thermal barrier coating (TBC) prepared from 3 wt.% yttria doped zirconia (YDZ) dispersed in a high temperature resistant alumino-borosilicate glassy phase in the system AO-B2O-C2O3-DO2 (where A = Ca, Mg, Ba; B = Na, K; C = Al; and D = Si) have been studied. The resultant coating compositions have been applied with good adherence on stainless steel (AISI-310) by simple and cost effective enameling technique. The thermal gradient of TBC with coating thickness of about 800 mu m has been found to be within 175-180 degrees C when it was exposed at 1000 degrees C for 30 min. A significant improvement of the gradient to 650-675 degrees C has been observed with a long exposure of coated surface at a temperature of 1000 degrees C aided by a cooling system made of continuous flow of compressed air. Evaluation, characterisation, and microstructure studies have been reported in this paper

Item Type:	Article
Uncontrolled Keywords:	thermal barrier coating (TBC); yttria doped zirconia (YDZ); enameling technique; thermal gradient; XRD; microstructure
Subjects:	Microstructure and Characterization
Divisions:	UNSPECIFIED
Depositing User:	Mrs Chandana Patra
Date Deposited:	08 Feb 2012 12:05
Last Modified:	08 Feb 2012 12:05
URI:	http://cgcri.csircentral.net/id/eprint/706

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