METASTABLE PHASES IN YTTRIUM-OXIDE PLASMA SPRAY DEPOSITS AND THEIR EFFECT ON COATING PROPERTIES

Authors
GOURLAOUEN V SCHNEDECKER G LEJUS AM BONCOEUR M COLLONGUES R
Citation
V. Gourlaouen et al., METASTABLE PHASES IN YTTRIUM-OXIDE PLASMA SPRAY DEPOSITS AND THEIR EFFECT ON COATING PROPERTIES, Materials research bulletin, 28(5), 1993, pp. 415-425
Citations number
11
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
28
Issue
5
Year of publication
1993
Pages
415 - 425
Database
ISI
SICI code
0025-5408(1993)28:5<415:MPIYPS>2.0.ZU;2-P
Abstract
Yttrium oxide coatings were obtained by plasma spray. Structural inves tigations on these deposits show that, due to the drastic conditions o f this technique, a minor monoclinic B phase is formed in the neighbor hood of the major cubic C form. We discuss here the influence of diffe rent plasma spray parameters on the amount of the B phase formed. We d escribe also the main properties of Y2O3 B and C phases in these depos its such as structural characteristics, thermal stability and mechanic al behavior.