Compressive Strength of Zirconia-Toughened Alumina (ZTA) Foam with CaCO₃ and CeO₂ Addition via Polymeric Sponge Replication Technique

Abstract:

The effects of CaCO₃ and CeO₂ additions on structural, microstructural and mechanical properties of zirconia-toughened alumina (ZTA) foams were investigated. The foams were fabricated via the sponge replication technique and sintered for 4 hours. The CaCO₃ decomposition and elongated hibonite grains produced micropores. The compressive strength for both ZTA foams after adding CaCO₃ and CeO₂ was higher than the rest of the foams, respectively. The addition of CeO₂ triggered larger yttria-stabilized zirconia (YSZ) grains, which significantly improved the compressive strength of ZTA.

• Periodical: Key Engineering Materials (Volume 908)
• Pages: 234-239
• DOI: https://doi.org/10.4028/p-58yt68
• Online since: January 2022
• Authors: Nik Akmar Rejab, Abdul Rashid Jamaludin, Norazharuddin Shah Abdullah, Zainal Arifin Ahmad*
• Keywords: Compressive Strength, Hibonite, Porous Ceramic, Sponge Replication, Zirconia-Toughened Alumina (ZTA)

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