Plasma-spray synthesis and characterization of ti-based nitride and oxide nanogranules
AUTOR(ES)
Antipas, Georgios S. E.
FONTE
Mat. Res.
DATA DE PUBLICAÇÃO
15/08/2014
RESUMO
The synthesis of nanosized Ti-based nanogranules via plasma spraying is reported. The synthesis route involved use of both nitrogen and oxygen gases with varying results. In the case of nitrogen, a mixture of titanium nitrides were produced, yielding both the Ti2N and the sub-stoichiometric TiN0.61 compounds. In the case of oxygen, both the stoichiometric rutile and TiO ceramic phases were indexed. Based on EDS analysis, even fractional oxygen concentrations caused tungsten impurities which originated from the cathode electrode. The method yielded particle mass median sizes of the order of 15nm and the smallest particles detected were 5nm.
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