scholarly journals B-site Cation Inter-Diffusion in Yttrium Substituted Barium Zirconate

2021 ◽  
Author(s):  
Ida Hasle ◽  
Ute N. Gries ◽  
Stephan Peter Waldow ◽  
Einar Vøllestad ◽  
Roger A De Souza ◽  
...  
Keyword(s):  
Barium Zirconate ◽  
Abo3 Perovskite

B-site cation inter-diffusion in the ABO3 perovskite yttrium-substituted barium zirconate (BZY) was studied at temperatures from 1100 to 1460 °C under reducing and oxidising conditions. The experiments followed two different...

scholarly journals The effect of ionic defect interactions on the hydration of yttrium-doped barium zirconate

2021 ◽  
Author(s):  
Sebastian Eisele ◽  
Fabian M. Draber ◽  
Steffen Grieshammer
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
First Principles ◽  
Barium Zirconate ◽  
First Principles Calculations ◽  
Defect Interactions ◽  
The Impact ◽  
Ionic Defect

First principles calculations and Monte Carlo simulations reveal the impact of defect interactions on the hydration of barium-zirconate.

scholarly journals Graph analysis of proton conduction pathways in scandium-doped barium zirconate

2021 ◽  
Vol 154 (7) ◽  
pp. 074711
Author(s):  
Maria A. Gomez ◽  
Sophia Brooks-Randall ◽  
Gianna Cai ◽  
Juniper Glass-Klaiber ◽  
Yuxin Jiang ◽  
...  
Keyword(s):  
Proton Conduction ◽  
Barium Zirconate ◽  
Graph Analysis

Optimum dopant of barium zirconate electrolyte for manufacturing of protonic ceramic fuel cells

2021 ◽  
Vol 506 ◽  
pp. 230134
Author(s):  
Tomohiro Kuroha ◽  
Yoshiki Niina ◽  
Mizuki Shudo ◽  
Go Sakai ◽  
Naoki Matsunaga ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Barium Zirconate ◽  
Ceramic Fuel ◽  
Ceramic Fuel Cells

scholarly journals High-Temperature Elastic Properties of Yttrium-Doped Barium Zirconate

Metals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 968
Author(s):  
Fumitada Iguchi ◽  
Keisuke Hinata
Keyword(s):  
High Temperature ◽  
Young’S Modulus ◽  
Elastic Properties ◽  
Measurement Method ◽  
Young's Modulus ◽  
Barium Zirconate ◽  
Shear Moduli ◽  
Ceramic Fuel ◽  
Yttrium Concentration ◽  
Ceramic Fuel Cells

The elastic properties of 0, 10, 15, and 20 mol% yttrium-doped barium zirconate (BZY0, BZY10, BZY15, and BZY20) at the operating temperatures of protonic ceramic fuel cells were evaluated. The proposed measurement method for low sinterability materials could accurately determine the sonic velocities of small-pellet-type samples, and the elastic properties were determined based on these velocities. The Young’s modulus of BZY10, BZY15, and BZY20 was 224, 218, and 209 GPa at 20 °C, respectively, and the values decreased as the yttrium concentration increased. At high temperatures (>20 °C), as the temperature increased, the Young’s and shear moduli decreased, whereas the bulk modulus and Poisson’s ratio increased. The Young’s and shear moduli varied nonlinearly with the temperature: The values decreased rapidly from 100 to 300 °C and gradually at temperatures beyond 400 °C. The Young’s modulus of BZY10, BZY15, and BZY20 was 137, 159, and 122 GPa at 500 °C, respectively, 30–40% smaller than the values at 20 °C. The influence of the temperature was larger than that of the change in the yttrium concentration.

Effect of elemental doping on the catalytic activity of ABO3 perovskite oxides during low-pressure gas nitriding

2021 ◽  
Vol 542 ◽  
pp. 148706
Author(s):  
Chengsong Zhang ◽  
Yun Wang ◽  
Dazhi Chen ◽  
Yeqiong Wu ◽  
Guodong Cui ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Pressure ◽  
Perovskite Oxides ◽  
Gas Nitriding ◽  
Abo3 Perovskite ◽  
Elemental Doping

Effect of Slight ZnO Addition on the Structural, Morphological and Electrical Properties of Barium Zirconate Pellets

2019 ◽  
Vol 25 (2) ◽  
pp. 1767-1774
Author(s):  
Pascal Briois ◽  
Mohammad Arab Pour Yazdi ◽  
Samuel Georges ◽  
Aliaksandr Shaula ◽  
Albano Cavaleiro ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Barium Zirconate

Effect of Impurity Silica on Grain Boundary Resistance of Yttrium-doped Barium Zirconate

2010 ◽  
Vol 29 (5-6) ◽  
pp. 339-346
Author(s):  
Susumu Imashuku, ◽  
Takaaki Tanaka, ◽  
Akiko Kuramitsu, ◽  
Yoshitaro Nose, ◽  
Tetsuya Uda,
Keyword(s):  
Grain Boundary ◽  
Boundary Resistance ◽  
Barium Zirconate
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