Fabrication and Characterization of Porous Zirconia/Alumina Composites

Gholamhossein Nozary; Ghodratollah Roudini; Ali Akbar Farashiani

doi:10.4028/www.scientific.net/AMR.488-489.515

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 488-489Fabrication and Characterization of Porous...

Fabrication and Characterization of Porous Zirconia/Alumina Composites

Abstract:

Porous ZrO2-Al2O3 ceramic composites containing 0, 30 and 50 wt% Al2O3 were prepared by solid state sintering in the temperature range of 1375˚-1650°C and effect of temperature and alumina percentage on compressive strength and microstructure of monoclinic zirconia was investigated by X-ray diffraction (XRD) and Scanning electron microscopy (SEM). XRD results on composite samples showed monoclinic ZrO2 and Al2O3 phases. SEM images showed uniform distribution of porosity in microstructure. Compressive strength of monoclinic zirconia improved from 33MPa to 134 MPa with adding of 50%wt alumina in sintering temperature of 1650°C.

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Advanced Materials Research (Volumes 488-489)

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515-519

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.488-489.515

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Online since:

March 2012

Authors:

Gholamhossein Nozary, Ghodratollah Roudini, Ali Akbar Farashiani

Keywords:

Compressive Strength, Microstructure, Porous ZrO₂-Al₂O₃ Composite

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