Mechanical Properties of Ceramics Prepared from a Nanocrystalline ZrO2 – 3 mol.% Y2O3 Powder

Mechanical Properties of Ceramics Prepared from a Nanocrystalline ZrO2 – 3 mol.% Y2O3 Powder Ceramics of ZrO2 – 3 mol.% Y2O3 composition prepared from commercial raw materials by cold isostatic pressing technique at sintering temperatures from 1100 to 1500°C are studied. Best mechanical properties were found in material sintered at 1350°C: density, 5.95 g/cm3; bending strength, 1200 MPa, and crack resistance, about 18 MPa ċ m1/2. The mechanical properties of ceramic materials sintered at 1300 and 1500°C are inferior by roughly a factor of 1.5, despite virtually the same density and grain size. This difference is explained as due to the different properties of the intergranular material in ceramics sintered at different temperatures. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Mechanical Properties of Ceramics Prepared from a Nanocrystalline ZrO2 – 3 mol.% Y2O3 Powder

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Publisher
Springer Journals
Copyright
Copyright © 2004 by Plenum Publishing Corporation
Subject
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1023/B:REFR.0000023353.91145.f5
Publisher site
See Article on Publisher Site

Abstract

Ceramics of ZrO2 – 3 mol.% Y2O3 composition prepared from commercial raw materials by cold isostatic pressing technique at sintering temperatures from 1100 to 1500°C are studied. Best mechanical properties were found in material sintered at 1350°C: density, 5.95 g/cm3; bending strength, 1200 MPa, and crack resistance, about 18 MPa ċ m1/2. The mechanical properties of ceramic materials sintered at 1300 and 1500°C are inferior by roughly a factor of 1.5, despite virtually the same density and grain size. This difference is explained as due to the different properties of the intergranular material in ceramics sintered at different temperatures.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Sep 30, 2004

References

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