Towards durable thermal barrier coatings with novel microstructures deposited by solution-precursor plasma spray

Citation
Np. Padture et al., Towards durable thermal barrier coatings with novel microstructures deposited by solution-precursor plasma spray, ACT MATER, 49(12), 2001, pp. 2251-2257
Citations number
26
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
ACTA MATERIALIA
ISSN journal
1359-6454 → ACNP
Volume
49
Issue
12
Year of publication
2001
Pages
2251 - 2257
Database
ISI
SICI code
1359-6454(20010717)49:12<2251:TDTBCW>2.0.ZU;2-C
Abstract
The feasibility of a new processing method-solution precursor plasma spray (SPPS)-for the deposition of ZrO2-based thermal barrier coatings (TBCs) wit h novel structures has been demonstrated. These desirable structures in the new TBCs appear to be responsible for their improved thermal cycling life: relative to conventional plasma-sprayed TBCs. Preliminary results from exp eriments aimed at understanding the SPPS deposition mechanisms suggest that nanometer-scale particles form in the plasma flame, followed by their depo sition by sintering onto the substrate in the intense heat of the plasma fl ame. The SPPS method, which offers some unique advantages over the conventi onal plasma-spray process, is generic in nature and can be potentially used to deposit a wide variety or ceramic coatings for diverse applications. (C ) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights r eserved.