Nanopowders properties and sintering of CaMnO3 solid solutions
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Pure and doped CaMnO3 were synthesized by applying modified glycine/nitrate procedure. The detailed structural characterization of prepared nanometric size powders, their properties, as well as the results on studying sintering and microstructure of the sintered bodies are given. Since the data on additive influence on densification of CaMnO3 during sintering are difficult to find in the literature, their role in densification is discussed. It was found that increasing Y concentration enhanced densification during sintering, and in addition, suppressed grain growth process. The results of the electrical conductivity measurements as a function of dopant concentration are also discussed. (C) 2007 Elsevier B.V. All rights reserved.
Кључне речи:glycine/nitrate procedure / manganites / synthesis / nanopowders / sintering / electrical properties
Извор:Journal of Alloys and Compounds, 2008, 463, 1-2, 282-287
- Ministry of Science and Environmental Protection of the Republic of Serbia , National Science and Engineering Council of Canada