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Synchrotron x-ray nano-tomography characterization of the sintering of multilayered systems

Yan, Zilin and Guillon, Olivier and Wang, Steve and Martin, Christophe L. and Lee, Chul-Seung and Bouvard, Didier (2012):
Synchrotron x-ray nano-tomography characterization of the sintering of multilayered systems.
In: Applied Physics Letters, pp. 263107(1-4), 100, (26), ISSN 00036951,
[Online-Edition: http://dx.doi.org/10.1063/1.4730625],
[Article]

Abstract

Synchrotron x-ray nano-tomography was used to characterize the microstructures of multi-layer ceramic capacitors before and after sintering. 3D microstructures of the same sample were reconstructed and quantitatively analyzed. The discontinuities observed in inner electrodes were found to originate from initial heterogeneities of nickel powders in the electrodes. They are supposed to grow due to the constraint of adjacent dielectric layers. Dielectric layers show anisotropic shrinkage with a decrease in density as function of layer position in the multilayer.

Item Type: Article
Erschienen: 2012
Creators: Yan, Zilin and Guillon, Olivier and Wang, Steve and Martin, Christophe L. and Lee, Chul-Seung and Bouvard, Didier
Title: Synchrotron x-ray nano-tomography characterization of the sintering of multilayered systems
Language: English
Abstract:

Synchrotron x-ray nano-tomography was used to characterize the microstructures of multi-layer ceramic capacitors before and after sintering. 3D microstructures of the same sample were reconstructed and quantitatively analyzed. The discontinuities observed in inner electrodes were found to originate from initial heterogeneities of nickel powders in the electrodes. They are supposed to grow due to the constraint of adjacent dielectric layers. Dielectric layers show anisotropic shrinkage with a decrease in density as function of layer position in the multilayer.

Journal or Publication Title: Applied Physics Letters
Volume: 100
Number: 26
Uncontrolled Keywords: ceramic capacitors, computerised tomography, crystal microstructure, multilayers, nickel, powders, shrinkage, sintering
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: 07 Jan 2013 13:02
Official URL: http://dx.doi.org/10.1063/1.4730625
Identification Number: doi:10.1063/1.4730625
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