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Preparation of the Al2O3/3Y-TZP Ceramics by Microwave Sintering under Low Temperature

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Abstract:

Nanometer Al2O3/3Y-TZP powders were prepared by coprecipitation process and the Al2O3/3Y-TZP ceramics were prepared by microwave sintering under relatively low temperature. The relative density, bending strength and fracture toughness of the Al2O3/3Y-TZP ceramic samples were studied. The results showed that the Al2O3/3Y-TZP powders exhibited fine and homogeneous near-spherical particles with the size of 40-60 nm. With increasing the sintering temperatures, all of the relative density, bending strength and fracture toughness of the ceramic samples increased firstly, reaching the maximum values of 99.1%, 1236 MPa and 10.89 MPa·m1/2 at 1250 °C respectively, and then decreased.

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Periodical:

Applied Mechanics and Materials (Volumes 477-478)

Pages:

1238-1241

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.477-478.1238

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Online since:

December 2013

Authors:

Jun Ming Luo*, Ji Lin Xu, Hong Yan Zuo, Jun Huang

Keywords:

Al2O3/3Y-TZP, Coprecipitation Process, Microwave Sintering, Nanometer Powders

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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