Structure, Sintering, and Crystallization Kinetics of Alkaline-Earth Aluminosilicate Glass-Ceramic Sealants for Solid Oxide Fuel Cells

2010 ◽  
Vol 93 (3) ◽  
pp. 830-837 ◽  
Author(s):  
Ashutosh Goel ◽  
Dilshat U. Tulyaganov ◽  
Anna Maria Ferrari ◽  
Essam R. Shaaban ◽  
Andreas Prange ◽  
...  
2007 ◽  
Vol 154 (7) ◽  
pp. B644 ◽  
Author(s):  
Yeong-Shyung Chou ◽  
Jeffry W. Stevenson ◽  
Prabhakar Singh

2004 ◽  
Vol 87 (2) ◽  
pp. 254-260 ◽  
Author(s):  
Sung-Bum Sohn ◽  
Se-Young Choi ◽  
Gyeung-Ho Kim ◽  
Hue-Sup Song ◽  
Goo-Dae Kim

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4702
Author(s):  
Roberto Spotorno ◽  
Marlena Ostrowska ◽  
Simona Delsante ◽  
Ulf Dahlmann ◽  
Paolo Piccardo

A commercially available glass-ceramic composition is applied on a ferritic stainless steel (FSS) substrate reproducing a type of interface present in solid oxide fuel cells (SOFCs) stacks. Electrochemical impedance spectroscopy (EIS) is used to study the electrical response of the assembly in the temperature range of 380–780 °C and during aging for 250 h at 780 °C. Post-experiment analyses, performed by means of X-ray diffraction (XRD), and along cross-sections by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis, highlight the microstructural changes promoted by aging conditions over time. In particular, progressive crystallization of the glass-ceramic, high temperature corrosion of the substrate and diffusion of Fe and Cr ions from the FSS substrate into the sealant influence the electrical response of the system under investigation. The electrical measurements show an increase in conductivity to 5 × 10−6 S∙cm−1, more than one order of magnitude below the maximum recommended value.


2014 ◽  
Vol 2 (6) ◽  
pp. 1834-1846 ◽  
Author(s):  
Allu Amarnath Reddy ◽  
Ashutosh Goel ◽  
Dilshat U. Tulyaganov ◽  
Mariana Sardo ◽  
Luis Mafra ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document