The influence of porosity on mechanical strength of 3,5YSZ ceramic carcass for anode solid oxide fuel cell application

I.О.Polishko,
   
V.Y.Podhurska,
 
B.D.Vasyliv,
  

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Electron Microscopy and Strength of Materials - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2017, #23
http://www.materials.kiev.ua/article/2476

Abstract

The influence of porosity on mechanical strength 3,5YSZ (ZrO2, stabilized with 3,5% (mol.) Y2O3) carcass was studied. The changes of carcasses porosity were provided by addition of granulated starch in range of 10—69% (vol.) in 3,5YSZ powder. Optimal level of porosity (38%) and mechanical strength (92 MPa) were obtained in carcasses with 51% (vol.) of starch. It was found, that replacement 8YSZ with 3,5YSZ is acceptable for manufacturing of ceramic component of anode solid oxide fuel cell via carcass method. Thus, with the same level of porosity (38%) 3,5YSZ and 8YSZ carcasses demonstrated mechanical strength of 92 and 38 MPa, respectively. Full text download


ANODE, CERAMICS, ERAMIC CARCASS, POROSITY, SOLID OXIDE FUEL CELL, STRENGTH, ZIRCONIA