Microstructure Characterization of TBC Layers of Gd2Zr2O7 Type

被引：2
|
作者：
Moskal, Grzegorz [1 ]
机构：
[1] Silesian Tech Univ, Dept Mat Sci, PL-40019 Katowice, Poland
来源：
DIFFUSION IN SOLIDS AND LIQUIDS VI, PTS 1 AND 2 | 2011年 / 312-315卷
关键词：
TBC; Gd zirconates; thermal properties;
D O I：
10.4028/www.scientific.net/DDF.312-315.439
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The paper presents microstructural assessment results of thermal barrier coatings deposited by plasma spraying of powders with the formula Gd2Zr2O7. Standard parameters of the air plasma spraying (APS) method were used. A visual assessment of layers and quantitative and qualitative characteristics of an outer ceramic layer with the laser microscopy method were performed. Roughness and other geometric parameters describing the TBC surface were determined. Phase composition analysis of the ceramic layer was also carried out. Microstructural assessment of the layers for meeting the assessment criteria of the ceramic coatings was also carried out. The bondcoat and ceramic layer porosity assessment was performed. The TBC system general quality was assessed for presence of cracks, delamination and massive porosity. It was found that the new type of layers obtained meet the quality requirements used for assessment of the conventional layers obtained by spraying 8YSZ zirconia.
引用
收藏
页码：439 / 444
页数：6
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