Structural characterization of YSZ/Al2O3 nanostructured composite coating fabricated by electrophoretic deposition and reaction bonding

被引：21

作者：

Ahmadi, Mojtaba ^{[1
]}

Aghajani, Hossein ^{[1
]}

机构：

[1] Univ Tabriz, Mat Engn Dept, Tabriz, Iran

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 06期

关键词：

YSZ/Al2O3; Composite coating; Electrophoretic deposition; Oxidation; Reaction bonding; THERMAL BARRIER COATINGS; THIN-FILMS; EPD; CONDUCTIVITY; TEMPERATURE; COMBINATION; ENGINES; SLIPS;

D O I：

10.1016/j.ceramint.2017.12.185

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Suspension of YSZ and Al particles in acetone in presence of 1.2 g/1 iodine as dispersant was used for electrophoretic deposition of green form YSZ/Al coating. Results revealed that applied voltage of 6 V and deposition time of 3 min were appropriate for deposition of green composite form coating. After deposition, a nanostructured dense YSZ/Al2O3 composite coating was fabricated by oxidation of Al particles at 600 degrees C for 2 h and subsequently sintering heat treatment at 1000 degrees C for 2 h. Melting and oxidation of Al particles in the green form composite coating not only caused reaction bonding between the particles but also lowered the sintering temperature of the ceramic coating about 200 degrees C. The EDS maps confirmed that the composition of fabricated coating was uniform and Al2O3 particles were dispersed homogenously in YSZ matrix.

引用

页码：5988 / 5995

页数：8

共 25 条

[1] Suspension characterization and electrophoretic deposition of Yttria-stabilized Zirconia nanoparticles on an iron-nickel based superalloy
Ahmadi, Mojtaba
Aghajani, Hossein
[J]. CERAMICS INTERNATIONAL, 2017, 43 (09) : 7321 - 7328
[2] Fabrication of dense zirconia electrolyte films for tubular solid oxide fuel cells by electrophoretic deposition
Basu, RN
Randall, CA
Mayo, MJ
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2001, 84 (01) : 33 - 40
[3] Lowering the sintering temperature for EPD coatings by applying reaction bonding
Baufeld, Bernd
van der Biest, Omer
Raetzer-Scheibe, Hans Joachim
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2008, 28 (09) : 1793 - 1799
[4] A review on fundamentals and applications of electrophoretic deposition (EPD)
Besra, Laxmidhar
Liu, Meilin
[J]. PROGRESS IN MATERIALS SCIENCE, 2007, 52 (01) : 1 - 61
[5] Application of electrophoretic and electrolytic deposition techniques in ceramics processing
Boccaccini, AR
Zhitomirsky, I
[J]. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2002, 6 (03) : 251 - 260
[6] Ceramic materials for thermal barrier coatings
Cao, XQ
Vassen, R
Stoever, D
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (01) : 1 - 10
[7] Preparation of yttria-stabilized zirconia (YSZ) films on La0.85Sr0.15MnO3 (LSM) and LSM-YSZ substrates using an electrophoretic deposition (EPD) process
Chen, FL
Liu, ML
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2001, 21 (02) : 127 - 134
[8] De Riccardis M.F., 2012, Ceramic Coatings - Applications in Engineering, P43
[9] Electrophoretic deposition of aqueous alumina slips
Ferrari, B
Moreno, R
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1997, 17 (04) : 549 - 556
[10] The conductivity of aqueous Al2O3 slips for electrophoretic deposition
Ferrari, B
Moreno, R
[J]. MATERIALS LETTERS, 1996, 28 (4-6) : 353 - 355

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