TY  - JOUR
PB  - Elsevier B.V.
SN  - 01694332
EP  - 672
AV  - none
N1  - cited By 32
TI  - Nano-structured yttria-stabilized zirconia coating by electrophoretic deposition
SP  - 666
Y1  - 2013///
A1  - Maleki-Ghaleh, H.
A1  - Rekabeslami, M.
A1  - Shakeri, M.S.
A1  - Siadati, M.H.
A1  - Javidi, M.
A1  - Talebian, S.H.
A1  - Aghajani, H.
JF  - Applied Surface Science
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879688143&doi=10.1016%2fj.apsusc.2013.04.173&partnerID=40&md5=fa6fdfa28a9c5e49b89a727291fd37dc
VL  - 280
N2  - The most important role of thermal barrier coatings is to reduce the temperature of the substrate in high temperature applications. Nano particle zirconia might be a suitable choice for improving the efficiency of thermal barrier coatings. Nanostructured coatings have lower thermal conduction, higher thermal expansion and lower dimensional variations at higher temperatures in comparison with the microstructured coatings. Electrophoretic deposition has been preferred for thermal barrier coatings due to its simplicity, controllability and low cost. In the present study, three different suspensions of ZrO 2 -8 wtY 2 O 3 (40 nm) made with ethanol, acetone and acetyl acetone were used. Electrophoretic deposition was conducted at a fixed voltage of 60 V for 120 s on aluminized Inconel 738-LC, and then heat treated at 1100 °C for 4 h in air atmosphere. The coating morphology and elemental distribution were studied using scanning electron microscopy. It was observed that suspension media have an important effect on the quality of the final product. Acetyl acetone showed better dispersion of particles than the other two media. Consequently, deposition from acetyl acetone resulted in uniform and crack-free layers while those from ethanol and acetone were completely non-uniform due to agglomeration and low viscosity, respectively. ©2013 Elsevier B.V. All rights reserved.
ID  - scholars3496
KW  - Acetone; Deposition; Electrophoresis; Electrophoretic coatings; Ethanol; High temperature applications; Nanoparticles; Scanning electron microscopy; Thermal expansion; Yttria stabilized zirconia; Yttrium oxide; Zirconia
KW  -  Coating morphology; Dimensional variations; Electrophoretic depositions; Elemental distribution; Inconel; Nanostructured coatings; Thermal conduction; Yttria stabilized zirconia coatings
KW  -  Thermal barrier coatings
ER  -