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Superplasticity and Joining of Zirconia-Based Ceramics

Published online by Cambridge University Press:  10 February 2011

F. Gutierrez-Mora ,
A. Dominguez-Rodriguez ,
M. Jimenez-Melendo ,
R. Chaim ,
G. B. Ravi  and
J. L. Routbort
F. Gutierrez-Mora
Affiliation:
Dpto. de Física de la Materia Condensada, Universidad de Sevilla, 41080 Sevilla, Spain
A. Dominguez-Rodriguez
Affiliation:
Dpto. de Física de la Materia Condensada, Universidad de Sevilla, 41080 Sevilla, Spain
M. Jimenez-Melendo
Affiliation:
Dpto. de Física de la Materia Condensada, Universidad de Sevilla, 41080 Sevilla, Spain
R. Chaim
Affiliation:
Dept. of Materials Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel
G. B. Ravi
Affiliation:
Dept. of Materials Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel
J. L. Routbort
Affiliation:
Energy Technology Division, Argonne National Laboratory
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Abstract

Steady-state creep and joining of alumina/zirconia composites containing alumina volume fractions of 20, 60, and 85% have been investigated between 1250 and 1350°C. Superplasticity of these compounds is controlled by grain-boundary sliding and the creep rate is a function of alumina volume fraction, not grain size. Using the principles of superplasticity, pieces of the composite have been joined by applying the stress required to achieve 5 to 10% strain to form a strong interface at temperatures as low as 1200°C

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 601: Symposium HH – Superplasticity-Current Status & Future Potential , 1999 , 99
Copyright
Copyright © Materials Research Society 2000

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