UNSPECIFIED (1996) Plasma-sprayed ceramic coatings for SiAlON ceramics. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 16 (10). pp. 1133-1139. ISSN 0955-2219

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Abstract

Plasma-sprayed coatings of yttria-stabilized ZrO2 and Al2O3.TiO2 used as a protective barrier on beta-Si3N4-based sialon ceramics were investigated. The coatings showed better cohesion with the pre-oxidized surfaces due to the reaction between the SiO2-rich oxidation layer and the coating materials. Formation of low thermal expansion zircon and aluminium titanate on the pre-oxidized ceramic was studied using scanning electron microscopy and X-ray diffraction. Preliminary experiments on oxidation and molten metal immersion, showed that the coatings provide significant protection against oxidation and molten metal attack. (C) 1996 Elsevier Science Limited.

Item Type:	Journal Article
Subjects:	T Technology > TP Chemical technology
Journal or Publication Title:	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Publisher:	ELSEVIER SCI LTD
ISSN:	0955-2219
Date:	1996
Volume:	16
Number:	10
Number of Pages:	7
Page Range:	pp. 1133-1139
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/18379

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