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Experimental determination of sintering stresses and sintering viscosities

Zuo, Ruzhong and Aulbach, Emil and Rödel, Jürgen (2003):
Experimental determination of sintering stresses and sintering viscosities.
In: Acta Materialia, pp. 4563-4574, 51, (15), ISSN 13596454, [Online-Edition: http://dx.doi.org/10.1016/S1359-6454(03)00293-3],
[Article]

Abstract

A loading dilatometer assisted by two high-resolution lasers was applied for the accurate measurement of radial and axial strains during uniaxial load assisted sintering. An improved hot forging technique was employed for the first time for the experimental determination of sintering stress and sintering viscosity by hot forging samples under various loads which were pre-sintered to different densities. The technique of discontinuous hot forging was discussed in detail and the effect of the developing anisotropy and different grain growth were analysed. The sintering stress and uniaxial viscosity were both obtained as functions of density ranging from 65 to 96% and compared with theoretical models. Alumina powder with a grain size of about 150 nm was used in this study.

Item Type: Article
Erschienen: 2003
Creators: Zuo, Ruzhong and Aulbach, Emil and Rödel, Jürgen
Title: Experimental determination of sintering stresses and sintering viscosities
Language: English
Abstract:

A loading dilatometer assisted by two high-resolution lasers was applied for the accurate measurement of radial and axial strains during uniaxial load assisted sintering. An improved hot forging technique was employed for the first time for the experimental determination of sintering stress and sintering viscosity by hot forging samples under various loads which were pre-sintered to different densities. The technique of discontinuous hot forging was discussed in detail and the effect of the developing anisotropy and different grain growth were analysed. The sintering stress and uniaxial viscosity were both obtained as functions of density ranging from 65 to 96% and compared with theoretical models. Alumina powder with a grain size of about 150 nm was used in this study.

Journal or Publication Title: Acta Materialia
Volume: 51
Number: 15
Uncontrolled Keywords: Sintering; Forging; Diffusion; Ceramics; Microstructure
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 18 May 2011 15:20
Official URL: http://dx.doi.org/10.1016/S1359-6454(03)00293-3
Identification Number: doi:10.1016/S1359-6454(03)00293-3
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