Metastable phase formation during flame spray pyrolysis of ZrO2(Y2O3)-Al2O3 nanoparticles

被引：5
作者：
Suffner, J. [1 ,2 ]
Wang, D. [2 ]
Kuebel, C. [2 ]
Hahn, H. [1 ,2 ]
机构：
[1] TU Darmstadt Karlsruhe Inst Technol, Joint Res Lab Nanomat, D-64287 Darmstadt, Germany
[2] Karlsruhe Inst Technol, Inst Nanotechnol, D-76021 Karlsruhe, Germany
来源：
SCRIPTA MATERIALIA | 2011年 / 64卷 / 08期
关键词：
Nanocrystalline materials; X-ray diffraction (XRD); Ceramics; Phase transformation; Annealing; SUPERPLASTIC BEHAVIOR; THERMAL-STABILITY; ALUMINA; DEFORMATION; ZRO2; MICROSTRUCTURE; NANOPOWDERS; EVOLUTION; CREEP;
D O I：
10.1016/j.scriptamat.2010.12.040
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanoparticles with the composition (1 - x mol.%) [ZrO2 (3 mol.% Y2O3)]-(x mol.%) Al2O3, with x ranging from 0 to 1, were prepared by liquid-feed flame spray pyrolysis. The effect of the alumina content on the morphology and phase formation was studied by means of X-ray diffraction, nitrogen adsorption and transmission electron microscopy. It is shown that alumina can be incorporated into the nanoparticles at levels above the solubility limit, leading to the formation of metastable extended solid solutions and core shell nanoparticles. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：781 / 784
页数：4
相关论文
共 29 条
[1]   EFFECT OF CRYSTAL SIZE-REDUCTION ON LATTICE SYMMETRY AND COOPERATIVE PROPERTIES [J].
AYYUB, P ;
PALKAR, VR ;
CHATTOPADHYAY, S ;
MULTANI, M .
PHYSICAL REVIEW B, 1995, 51 (09) :6135-6138
[2]   Superplastic deformation mechanisms during creep of alumina-zirconia composites [J].
Clarisse, L ;
Baddi, R ;
Bataille, A ;
Crampon, J ;
Duclos, R ;
Vicens, J .
ACTA MATERIALIA, 1997, 45 (09) :3843-3853
[3]   Nanoparticulate cathode thin films with high electrochemical activity for low temperature SOFC applications [J].
Darbandi, Azad J. ;
Hahn, Horst .
SOLID STATE IONICS, 2009, 180 (26-27) :1379-1387
[4]   Flame spray synthesis and characterisation of stabilised ZrO2 and CeO2 electrolyte nanopowders for SOFC applications at intermediate temperatures [J].
Heel, Andre ;
Vital, Andri ;
Holtappels, Peter ;
Graule, Thomas .
JOURNAL OF ELECTROCERAMICS, 2009, 22 (1-3) :40-46
[5]   Synthesis of metastable phases in the magnesium spinel-alumina system [J].
Hinklin, T. R. ;
Laine, R. M. .
CHEMISTRY OF MATERIALS, 2008, 20 (02) :553-558
[6]   Morphology and composition of spray-flame-made yttria-stabilized zirconia nanoparticles [J].
Jossen, R ;
Mueller, R ;
Pratsinis, SE ;
Watson, M ;
Akhtar, MK .
NANOTECHNOLOGY, 2005, 16 (07) :S609-S617
[7]   Thermal stability of flame-made zirconia-based mixed oxides [J].
Jossen, Rainer ;
Heine, Martin C. ;
Pratsinis, Sotiris E. ;
Akhtar, M. Kamal .
CHEMICAL VAPOR DEPOSITION, 2006, 12 (10) :614-619
[8]  
Kim M, 2007, J CERAM PROCESS RES, V8, P129
[9]   Pressureless Sintering t-zirconia@δ-Al2O3 (54 mol%) Core-Shell Nanopowders at 1120°C Provides Dense t-Zirconia-Toughened α-Al2O3 Nanocomposites [J].
Kim, Min ;
Laine, Richard M. .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (03) :709-715
[10]   CERAMIC FUEL-CELLS [J].
MINH, NQ .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1993, 76 (03) :563-588
123