Plasma spraying of an indigenous yttria stabilized zirconia powder prepared by the sol-gel techniqueShow others and affiliations
1993 (English)In: Bulletin of Materials Science, Vol. 16, no 1, 19-28 p.Article in journal (Refereed) Published
Abstract [en]
An indigenous sol-gel derived yttria-partially stabilized zirconia (Y-PSZ) powder has been characterized and its suitability for plasma spraying applications evaluated. The powder, determined to have about 5·1% yttria content, predominantly consisted of spherical particles with an average equivalent particle diameter close to 25 μm. Furthermore, it was found that the powder did not contain any particles >50 μm, which is considered the ideal upper size limit for spray-grade ceramic powders in order to ensure complete melting during spraying. The sol-gel produced powder exhibited good flow characteristics and the plasma sprayed coatings developed using this powder were also found to have excellent thermal shock resistance. The corresponding results obtained using an imported Y-PSZ powder are also presented for the purpose of comparison. © 1993 Indian Academy of Sciences.
Place, publisher, year, edition, pages
Springer India , 1993. Vol. 16, no 1, 19-28 p.
Keyword [en]
Plasma spraying, sol-gel technique, thermal barrier coatings, yttria-stabilized-zirconia, Ceramic coatings, Heat resistance, Particle size analysis, Powders, Protective coatings, Sol-gels, Yttrium compounds, Sol gel technique, Thermal shock resistance, Yttria-stabilized zirconia (YSZ), Zirconia
Identifiers
URN: urn:nbn:se:hv:diva-8459ISBN: 02504707 (ISSN) OAI: oai:DiVA.org:hv-8459DiVA: diva2:860153
2015-10-102015-10-082015-10-10Bibliographically approved