Microstructural Characterization and Thermal Properties of Aluminium Titanate/YSZ Ceramics

• Authors: E. Çitak , T. Boyraz
• Languages of publication: EN

Abstracts

EN

Yttria stabilized zirconia (YSZ, with 3 mol.% Y_2O_3) has superior high temperature properties such as high tolerance for thermal shock, low thermal conductivity, mechanical properties, elevated melting point, good phase stability, and excellent oxidation resistance. Aluminium titanate (Al_2TiO_5) exhibits extremely good thermal shock resistance and low thermal conductivity coupled with good chemical resistance in molten metals. In the present work, aluminium titanate/YSZ ceramics with different percentages of Al_2TiO_5 was prepared using powder metallurgy techniques. The microstructural, mechanical and thermal properties were characterized using X-ray diffraction, scanning electron microscopy, differential scanning calorimetry, dilatometer and hardness. Thermal shock resistance behaviour under water quenching of the as-prepared ceramics was also evaluated. The results revealed that the addition of aluminium titanate to YSZ matrix improves the properties of the aluminium titanate/YSZ ceramics.

Keywords

EN

81.05.Mh

Discipline

• 81.05.Mh: Cermets, ceramic and refractory composites

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 125
• Issue: 2
• Pages: 465-468

Dates

published

2014-02

Contributors

author

E. Çitak

• Cumhuriyet University, Metallurgical and Materials Engineering, Sivas, Turkey
• Erciyes University, Fine Arts, Kayseri, Turkey

author

T. Boyraz

• Cumhuriyet University, Metallurgical and Materials Engineering, Sivas, Turkey

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Identifiers

DOI

10.12693/APhysPolA.125.465