Modified amorphous layered titanates as precursor materials to produce heterostructured nanopowders and ceramic nanocomposites

► Intercalation and decoration of potassium titanate with metal oxides/hydroxides. ► Thermal behavior of heterostructured titanate-based nanopowders. ► Nonlinear electric properties of ceramics based on heterostructured nanoparticles. This report is concentrated upon manufacturing some new kinds of...

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Bibliographic Details
Published in:Journal of alloys and compounds 2014-02, Vol.586, p.S494-S497
Main Authors: Gorokhovsky, A.V., Tretyachenko, E.V., Escalante-Garcia, J.I., Yurkov, G.Yu, Goffman, V.G.
Format: Article
Language:English
Subjects:
Alloys
Amorphous materials
Amorphous precursor materials
Ceramics
Character recognition
Chemical composition
Heterostructured nanoparticles
Layered titanates
Nanostructure
Nonlinear electric properties
Precursors
Thermal behavior
Titanates
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Summary:► Intercalation and decoration of potassium titanate with metal oxides/hydroxides. ► Thermal behavior of heterostructured titanate-based nanopowders. ► Nonlinear electric properties of ceramics based on heterostructured nanoparticles. This report is concentrated upon manufacturing some new kinds of electroceramics based on synthesis of layered potassium polytitanate nanoparticles, following chemical treatment of these particles in aqueous solutions containing transition metal ions (Men+), and thermal treatment of the obtained amorphous precursor materials at the temperatures which allow producing the final ceramic material characterized with desired functional properties. It was shown that the final ceramics consisted of MeTiO3, hollandite-like K(Ti,Me)8O16.5 crystals and some admixtures of Me or MexOy and K2Ti6O13, depending on chemical composition of powdered precursor. It was recognized that the ceramic materials obtained in the system investigated were characterized with nonlinear electric properties which could be regulated by the type of precursor material and its chemical composition.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2012.10.054