Influence of Service Temperature on Grain Growth and Thermal Diffusivity of Nanostructured Thermal Barrier Coating

2005 ◽  
pp. 3985-3988
Author(s):  
Chun Gen Zhou ◽  
Na Wang ◽  
Sheng Kai Gong ◽  
Hui Bin Xu
Keyword(s):  
Thermal Diffusivity ◽  
Grain Growth ◽  
Thermal Barrier Coating ◽  
Thermal Barrier ◽  
Service Temperature ◽  
Barrier Coating ◽  
Nanostructured Thermal Barrier Coating

Influence of Service Temperature on Grain Growth and Thermal Diffusivity of Nanostructured Thermal Barrier Coating

2005 ◽  
Vol 475-479 ◽  
pp. 3985-3988
Author(s):  
Chun Gen Zhou ◽  
Na Wang ◽  
Sheng Kai Gong ◽  
Hui Bin Xu
Keyword(s):  
Heat Treatment ◽  
Grain Size ◽  
Thermal Diffusivity ◽  
Thermal Barrier ◽  
Service Temperature ◽  
Zirconia Coating ◽  
Treatment Results ◽  
Barrier Coating ◽  
Average Grain Size ◽  
Nanostructured Thermal Barrier Coating

The as-sprayed zirconia coating had an average grain size of 67 nm. Thermal treatment results showed that the grains of the nanostructured coating grew slightly below 900°C, whereas over 1000°C the gains grew rapidly. The thermal diffusivity of the coating increases with increasing heat-treatment temperatures.

Sintering behavior of a nanostructured thermal barrier coating deposited using electro‐sprayed particles

2020 ◽  
Vol 103 (12) ◽  
pp. 7267-7282
Author(s):  
Chen Xing ◽  
Meiyu Yi ◽  
Xiao Shan ◽  
Xin Wang ◽  
Xiaofeng Zhao ◽  
...  
Keyword(s):  
Thermal Barrier Coating ◽  
Sintering Behavior ◽  
Thermal Barrier ◽  
Barrier Coating ◽  
Nanostructured Thermal Barrier Coating

Heat treatment of nanostructured thermal barrier coating

2007 ◽  
Vol 33 (6) ◽  
pp. 1075-1081 ◽  
Author(s):  
Na Wang ◽  
Chungen Zhou ◽  
Shengkai Gong ◽  
Huibin Xu
Keyword(s):  
Heat Treatment ◽  
Thermal Barrier Coating ◽  
Thermal Barrier ◽  
Barrier Coating ◽  
Nanostructured Thermal Barrier Coating

HOT CORROSION OF CERIA-YTTRIA STABILIZED ZIRCONIA PLASMA SPRAYED THERMAL BARRIER COATING BY EUTECTIC VANDIUM PENTAOXIDE-SODIUM SULFATE

2018 ◽  
Vol 18 (1) ◽  
pp. 182-192 ◽  
Author(s):  
Mohammed J Kadhim ◽  
Mohammed H Hafiz ◽  
Maryam A Ali Bash
Keyword(s):  
Thermal Barrier Coating ◽  
Hot Corrosion ◽  
Monoclinic Phase ◽  
Volume Fraction ◽  
High Volume ◽  
Thermal Barrier ◽  
Air Plasma ◽  
Plan View ◽  
Barrier Coating ◽  
Plasma Sprayed

The high temperature corrosion behavior of thermal barrier coating (TBC) systemconsisting of IN-738 LC superalloy substrate, air plasma sprayed Ni24.5Cr6Al0.4Y (wt%)bond coat and air plasma sprayed ZrO2-20 wt% ceria-3.6 wt% yttria (CYSZ) ceramic coatwere characterized. The upper surfaces of CYSZ covered with 30 mg/cm2 , mixed 45 wt%Na2SO4-55 wt% V2O5 salt were exposed at different temperatures from 800 to 1000 oC andinteraction times from 1 up to 8 h. The upper surface plan view of the coatings wereidentified for topography, roughness, chemical composition, phases and reaction productsusing scanning electron microscopy, energy dispersive spectroscopy, talysurf, and X-raydiffraction. XRD analyses of the plasma sprayed coatings after hot corrosion confirmed thephase transformation of nontransformable tetragonal (t') into monoclinic phase, presence ofYVO4 and CeVO4 products. Analysis of the hot corrosion CYSZ coating confirmed theformation of high volume fraction of YVO4, with low volume fractions of CeOV4 and CeO2.The formation of these compounds were combined with formation of monoclinic phase (m)from transformation of nontransformable tetragonal phase (t').

Evaluation of Spatial Resolution of Nondestructive Testing of Thermal Barrier Coating by Terahertz Imaging

2012 ◽  
Vol 132 (10) ◽  
pp. 864-870
Author(s):  
Tetsuo Fukuchi ◽  
Norikazu Fuse ◽  
Mitsutoshi Okada ◽  
Tomoharu Fujii ◽  
Maya Mizuno ◽  
...  
Keyword(s):  
Nondestructive Testing ◽  
Thermal Barrier Coating ◽  
Spatial Resolution ◽  
Terahertz Imaging ◽  
Thermal Barrier ◽  
Barrier Coating

Surface Roughness Measurement of Thermal Barrier Coating using Terahertz Waves

2017 ◽  
Vol 137 (3) ◽  
pp. 147-152 ◽  
Author(s):  
Tetsuo Fukuchi ◽  
Norikazu Fuse ◽  
Mitsutoshi Okada ◽  
Tomoharu Fujii ◽  
Maya Mizuno ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Thermal Barrier Coating ◽  
Thermal Barrier ◽  
Roughness Measurement ◽  
Terahertz Waves ◽  
Surface Roughness Measurement ◽  
Barrier Coating
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