Table of Contents
Journal of Ceramics
Volume 2013 (2013), Article ID 785210, 8 pages
http://dx.doi.org/10.1155/2013/785210
Research Article

Processing and Characterization of Yttria-Stabilized Zirconia Foams for High-Temperature Applications

Graduate Program in Materials Science and Engineering (PGMAT), Departments of Chemical (EQA) and Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil

Received 30 September 2013; Accepted 15 November 2013

Academic Editor: Young-Wook Kim

Copyright © 2013 Ana María Herrera et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this work ceramic foams of 3 and 8 mol% yttria-stabilized zirconia (3YSZ and 8YSZ) were manufactured by the replication method using polystyrene-polyurethane foams with pore sizes in the 7–10 ppi range. A second coating was carried out on presintered foams in order to thicken struts and hinder microstructural defects. The produced ceramic foams were structurally and thermomechanically characterized. Samples recoated with 3YSZ presented the highest relative densities () which contributed to a better mechanical and thermal behavior.