Investigation of the Microstructure and Chemical Composition of CaCu3Ti4O12 Multilayer Elements using SEM, EDS, and XPS |
| A. Skwareka, R.P. Sochab, D. Szwagierczaka, P. Zachariasza
aInstitute of Electron Technology, Kraków Division, Zabłocie 39, 30-701 Kraków, Poland bInstitute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland |
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| In this paper the microstructure and chemical composition of CaCu3Ti4O12 multilayer elements fabricated using low temperature cofired ceramics procedure were characterized by scanning electron microscope, energy dispersive spectroscopy and X-ray photoelectron spectroscopy. The multilayer elements were obtained in the process encompassing: tape casting, laser cutting, screen printing, isostatic lamination and cofiring of ceramic tapes with internal conductive films at 940°. The compatibility of CaCu3Ti4O12 with three commercial Ag and Ag-Pd thick film pastes was confirmed. The results of scanning electron microscope and energy dispersive spectroscopy analysis revealed close to the stoichiometric composition of CaCu3Ti4O12 grains and significant enrichment in oxygen of grain boundaries. X-ray photoelectron spectroscopy studies showed that main oxidation states of the component elements were Cu2+, Ti4+, and Ca2+. |
DOI:10.12693/APhysPolA.134.318 topics: calcium copper titanate, low temperature cofired ceramics, SEM analysis, EDS analysis, XPS analysis |