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

Ana María Herrera | Zendy; Amir Antônio Martins Oliveira | Zendy; Antônio Pedro Novaes de Oliveira | Zendy; Dachamir Hotza | Zendy

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

Author(s) -

Ana María Herrera,

Amir Antônio Martins Oliveira,

Antônio Pedro Novaes de Oliveira,

Dachamir Hotza

Publication year - 2013

Publication title -

journal of ceramics

Language(s) - English

Resource type - Journals

eISSN - 2090-8628

pISSN - 2090-8644

DOI - 10.1155/2013/785210

Subject(s) - materials science , yttria stabilized zirconia , cubic zirconia , ceramic , composite material , polystyrene , coating , polyurethane , chemical engineering , polymer , engineering

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 (0.2±0.1) which contributed to a better mechanical and thermal behavior

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