Structural and Microstructure Relationship with Fracture Toughness of CeO2 Addition into Zirconia Toughened Alumina (ZTA) Ceramic Composites

Nik Akmar Rejab; Ahmad Zahirani Ahmad Azhar; Manimaran Ratnam; Zainal Arifin Ahmad

doi:10.4028/www.scientific.net/AMR.620.252

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 620Structural and Microstructure Relationship with...

Structural and Microstructure Relationship with Fracture Toughness of CeO₂ Addition into Zirconia Toughened Alumina (ZTA) Ceramic Composites

Abstract:

The effect of CeO₂ addition in zirconia toughened alumina (ZTA) was examined. The CeO₂ addition in weight percent (wt %) was varied from 0 wt% to 15 wt%. The fabricated samples were sintered at a temperature of 1600°C. The sintered samples were characterized their properties such as fracture toughness and phase determination. X-ray diffraction patterns confirm the constituent phases present in the samples were alumina and zirconia. Fracture toughness for each sample in the range of 5.878.38 MPam^1/2 respectively. It was observed that the addition of ceria increased the fracture toughness of the zirconia toughened alumina ceramic composites.

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Periodical:

Advanced Materials Research (Volume 620)

Pages:

252-256

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.620.252

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Online since:

December 2012

Authors:

Nik Akmar Rejab, Ahmad Zahirani Ahmad Azhar, Manimaran Ratnam, Zainal Arifin Ahmad

Keywords:

Crystallite Size, Fracture Toughness, Grain Size, Tetragonal

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