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A microstructure analysis of the interface between BaTiO3 dielectric and Ni electrode

The BaTiO3 sample was made by dry pressure, it was artificial spread nickel paste on BaTiO3, and it was simulated multilayer ceramic capacitors (MLCC¡¦s) to make a sandwich structure with BaTiO3-Ni-BaTiO3 by sintered in YAGEO¡¦s laboratories. The samples have been thoroughly analysis for the interface between BaTiO3 dielectric and Ni electrode or NiO oxide, by X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy.
The interface between BaTiO3 and Ni has not orientation relationship as determined by selected area diffraction and it¡¦s not had dislocations in interface by two- beam image.
The NiO oxide as determined by XRD and TEM, because of the thermodynamic potential of the Ni/NiO equilibrium was produced. The array of dislocations of Burgers vector is 1/2[ 10] in the interface, and Burgers vectors are 1/2[00 ], [ 1 ] as determined by high resolution images and Fast Fourier Transform simulation. Misfit dislocations along the interface occur to accommodate the lattice mismatch.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0707106-143423
Date07 July 2006
CreatorsLee, Kun-Hsu
Contributorsnone, none, none
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0707106-143423
Rightscampus_withheld, Copyright information available at source archive

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