Influence of plasma spray parameters on mechanical properties of yttria stabilized zirconia coatings. II: Acoustic emission response

2000 ◽  
Vol 284 (1-2) ◽  
pp. 41-50 ◽  
Author(s):  
A. Kucuk ◽  
C.C. Berndt ◽  
U. Senturk ◽  
R.S. Lima
2014 ◽  
Vol 76 (5-8) ◽  
pp. 1031-1045 ◽  
Author(s):  
Amir Hossein Pakseresht ◽  
Ehsan Ghasali ◽  
Mehrdad Nejati ◽  
Kamyar Shirvanimoghaddam ◽  
Amir Hossein Javadi ◽  
...  

Author(s):  
W. W. Davison ◽  
R. C. Buchanan

Yttria stabilized zirconia (YSZ) has become a significant technological material due to its high ionic conductivity, chemical inertness, and good mechanical properties. Temperatures on the order of 1700°C are required, however, to densify YSZ to the degree necessary for good electrical and mechanical properties. A technique for lowering the densification temperature is the addition of small amounts of material which facilitate the formation of a liquid phase at comparatively low temperatures. In this study, sintered microstructures obtained from the use of Al2O3 as a sintering aid were examined with scanning, transmission, and scanning transmission microscopy (SEM, TEM, and STEM).


2013 ◽  
Vol 591 ◽  
pp. 245-248 ◽  
Author(s):  
Jin Feng Xia ◽  
Hong Qiang Nian ◽  
Tao Feng ◽  
Hai Fang Xu ◽  
Dan Yu Jiang

In some applications such as automotive oxygen sensor, 5mol% Y2O3stabilized zirconia (5YSZ) is generally used because it has both excellent ionic conductivity and mechanical properties. The automotive oxygen sensor would experience a cyclic change from high temperature (engine running) environment to the low temperature damp environment (in the tail pipe when vehicle stops). The conductivity change with coupled conditions of thermal cycle and dump environment in the 5mol%Y2O3ZrO2(5YSZ) system was examined by XRD,Impedance spectroscopy and transmission electron microscopy (SEM) in this paper.


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