The influence of oxygen partial pressure on the creep characteristics of a superplastic 4 mol % yttria partially-stabilized zirconia

1994 ◽  
Vol 13 (16) ◽  
pp. 1169-1170 ◽  
Author(s):  
A. Bravo-León ◽  
M. Jiménez-Melendo ◽  
A. Domínguez-Rodriǵuez ◽  
A. H. Chokshi
Keyword(s):  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Stabilized Zirconia ◽  
Partially Stabilized Zirconia ◽  
Creep Characteristics ◽  
Yttria Partially Stabilized Zirconia

Nitriding of yttria-stabilized zirconia in atmospheric pressure microwave plasma

2009 ◽  
Vol 24 (6) ◽  
pp. 2021-2028 ◽  
Author(s):  
R. Milani ◽  
R.P. Cardoso ◽  
T. Belmonte ◽  
C.A. Figueroa ◽  
C.A. Perottoni ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Atmospheric Pressure ◽  
Microwave Plasma ◽  
Plasma Nitriding ◽  
Nitrided Layer ◽  
Zirconium Nitride ◽  
Stabilized Zirconia ◽  
Partially Stabilized Zirconia ◽  
X Ray ◽  
Yttria Partially Stabilized Zirconia

High temperature plasma nitriding of yttria-partially-stabilized zirconia in atmospheric pressure microwave plasma was investigated. The morphological, mechanical, and physicochemical characteristics of the resulting nitrided layer were characterized by different methods, such as optical and scanning electron microscopy, microindentation, x-ray diffraction, narrow resonant nuclear reaction profiling, secondary neutral mass spectrometry, and x-ray photoelectron spectroscopy, aiming at investigating the applicability of this highly efficient process for nitriding of ceramics. The structure of the plasma nitrided layer was found to be complex, composed of tetragonal and cubic zirconia, as well as zirconium nitride and oxynitride. The growth rate of the nitrided layer, 4 µm/min, is much higher than that obtained by any other previous nitriding process, whereas a typical 50% increase in Vickers hardness over that of yttria-partially-stabilized zirconia was observed.

Effect of surface treatment on the bond strength between yttria partially stabilized zirconia ceramics and resin cement

2014 ◽  
Vol 112 (2) ◽  
pp. 357-364 ◽  
Author(s):  
Luiz R. Menani ◽  
Ian A.G.K.M. Farhat ◽  
Rodrigo Tiossi ◽  
Ricardo F. Ribeiro ◽  
Antonio C. Guastaldi
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Resin Cement ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Partially Stabilized Zirconia ◽  
Yttria Partially Stabilized Zirconia ◽  
Effect Of Surface
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