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Preparation And Sintering Studies Of Nanometer-Sized Polycrystalline ZrO2

Published online by Cambridge University Press:  25 February 2011

R. Würschum ,
G. Soyez  and
H.-E. Schaefer
R. Würschum
Affiliation:
Universität Stuttgart, Institut für Theoretische und Angewandte Physik, Pfaffenwald-ring 57/VI, 7000 Stuttgart 80, Germany
G. Soyez
Affiliation:
Universität Stuttgart, Institut für Theoretische und Angewandte Physik, Pfaffenwald-ring 57/VI, 7000 Stuttgart 80, Germany
H.-E. Schaefer
Affiliation:
Universität Stuttgart, Institut für Theoretische und Angewandte Physik, Pfaffenwald-ring 57/VI, 7000 Stuttgart 80, Germany
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Abstract

The present paper reports on the characterization and on sintering studies of nanometer-sized polycrystalline ZrO2 prepared by the technique of crystallite condensation, oxidation, and in-situ compaction. The annealing induced growth of crystallites as well as a transformation from the tetragonal to the monoclinic phase were observed. A rapid increase of the mass density and of the microhardness during annealing up to 1000 °C indicates attractive sintering characteristics. By means of positron lifetime spectroscopy the development of the pattern of structural free volumes during sintering was studied.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 238: Symposium Cb – Structure and Properties of Interfaces in Materials , 1991 , 733
Copyright
Copyright © Materials Research Society 1992

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References

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