Swift heavy ion-induced swelling and damage in yttria-stabilized zirconia

2007 ◽  
Vol 101 (7) ◽  
pp. 073501 ◽  
Author(s):  
Jean-Marc Costantini ◽  
Christina Trautmann ◽  
Lionel Thomé ◽  
Jacek Jagielski ◽  
François Beuneu
2008 ◽  
Vol 104 (7) ◽  
pp. 073504 ◽  
Author(s):  
Jean-Marc Costantini ◽  
François Guillet ◽  
Sébastien Lambert ◽  
Dominique Grébille ◽  
François Beuneu ◽  
...  

2010 ◽  
Vol 1264 ◽  
Author(s):  
Jean-Marc Costantini ◽  
François Beuneu

AbstractWe present a study of point-defect creation in yttria-stabilized zirconia (ZrO2: Y) or YSZ exposed to various heavy ions (from C to U) covering an energy range from 100 MeV to several GeVs. It is concluded that F+-type centers (involving singly-ionized oxygen vacancies) are produced by elastic-collision processes. The ion-induced out-of-plane expansion is found to be small (< 0.2%) and to increase linearly as a function of the average F+-type center concentration with a large slope compatible with small oxygen vacancy clusters. The large defect volume and <100> axial symmetry of the F+-type centers hint that these color centers might actually be divacancies (i.e. F2+ centers).


2007 ◽  
Vol 101 (10) ◽  
pp. 103516 ◽  
Author(s):  
G. Sattonnay ◽  
M. Lahrichi ◽  
M. Herbst-Ghysel ◽  
F. Garrido ◽  
L. Thomé

2010 ◽  
Vol 22 (31) ◽  
pp. 315402 ◽  
Author(s):  
Jean-Marc Costantini ◽  
François Beuneu ◽  
Kurt Schwartz ◽  
Christina Trautmann

2005 ◽  
Vol 885 ◽  
Author(s):  
Jeremy Cheng ◽  
Kevin Crabb ◽  
Rojana Pornprasertsuk ◽  
Hong Huang ◽  
Yuji Saito ◽  
...  

ABSTRACTThe performance of solid oxide fuel cells is limited largely by ion transport in the electrolyte. Thin film electrolytes of yttria-stabilized zirconia were deposited by pulsed laser deposition. The electrolyte material was subjected to heavy ion irradiation and heat treatment and the effects on conductivity were measured using electrical impedance spectroscopy. Following irradiation there is a drop in conductivity by a factor of 3-4. After heat treatment at 800°C, the conductivity recovers to the as-deposited value.


2010 ◽  
Vol 22 (34) ◽  
pp. 349801-349801 ◽  
Author(s):  
Jean-Marc Costantini ◽  
François Beuneu ◽  
Kurt Schwartz ◽  
Christina Trautmann

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).


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