Large scale synthesis of non-transformable tetragonal Sc2O3, Y2O3 doped ZrO2 nanopowders via the citric acid based gel method to obtain plasma sprayed coating

被引：25
|
作者：
Loghman-Estarki, Mohammad Reza [1 ]
Edris, Hossein [1 ]
Razavi, Reza Shoja [2 ]
机构：
[1] Isfahan Univ Technol, Dept Mat Engn, Esfahan, Iran
[2] Malek Ashtar Univ Technol, Dept Mat Engn, Esfahan, Shahin Shahr, Iran
来源：
CERAMICS INTERNATIONAL | 2013年 / 39卷 / 07期
关键词：
Sol-gel; Zirconia based ceramics; Metastable tetragonal; YTTRIA-STABILIZED ZIRCONIA; THERMAL BARRIER COATINGS; POLYMERIZED COMPLEX METHOD; PHASE-STABILITY; SOLID-SOLUTIONS; RAMAN-SPECTRA; SCANDIA; POWDER; PRECURSOR; ROUTE;
D O I：
10.1016/j.ceramint.2013.03.042
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：
Non-transformable tetragonal scandia, yttria doped zirconia (SYDZ) nanopowders were prepared in large scale by the citric acid (CA) based gel method. The effect of ethylene glycol monobutyl ether (EGM):CA ratios and pH on the structure, morphology and SYDZ particle size was investigated. The microstructure of SYDZ was characterized by XRD, Raman scattering, TG-DTA, SEM, TEM, and FTIR analyses. The SYDZ nanopowders, synthesized with 1Zr(4+):4EGM:4CA mole ratio in acidic medium (pH similar to 1) at 700 degrees C, had an average diameter of 15 +/- 2 nm. Finally, air plasma spray (APS) coatings were produced from nanostructured SYDZ agglomerated powders. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：7817 / 7829
页数：13
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