Spark plasma sintering and characterization of bulk nanostructured fully stabilized zirconia: Part II. Characterization studies

被引：66
作者：
Anselmi-Tamburini, U
Garay, JE
Munir, ZA [1 ]
Tacca, A
Maglia, F
Chiodelli, G
Spinolo, G
机构：
[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA
[2] Univ Pavia, Dept Phys Chem, I-27100 Pavia, Italy
[3] CNR, IENI, Pavia Branch, I-27100 Pavia, Italy
来源：
JOURNAL OF MATERIALS RESEARCH | 2004年 / 19卷 / 11期
关键词：
D O I：
10.1557/JMR.2004.0424
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dense fully stabilized cubic zirconia, sintered by the spark plasma sintering (SPS) method, was characterized through hardness, fracture toughness, and electrical impedance measurements. The effect of sintering temperature on hardness and fracture toughness was evaluated. Samples sintered at 1200 °C for 5 min, which had crystallite size of <100 nm, exhibited the highest hardness. Impedance measurements showed an increase in bulk contribution relative to grain boundaries as sintering temperature is increased. Calculation of the activation energy for conduction gave a value, 1.13 eV, in agreement with previously published results. © 2004 Materials Research Society.
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页码：3263 / 3269
页数：7
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