Synthesis of nanocomposites based on MO-Bi2O3-B2O3 (M = Ca, Sr, Ba) glasses

Synthesis of nanocomposites based on MO-Bi2O3-B2O3 (M = Ca, Sr, Ba) glasses

This work examines the effect of KBF 4 additions on the crystallization behavior of glasses based on the multicomponent systems MO-Bi 2 O 3 -B 2 O 3 with M = Ca, Sr, and Ba. The glass-ceramic composites obtained contain a δ-Bi 2 O 3 -based crystalline phase with a crystallite size of ≃7 nm, evenly d...

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Veröffentlicht in:Inorganic materials 2010-04, Vol.46 (4), p.434-438
Hauptverfasser: Egorysheva, A. V., Volodin, V. D., Skorikov, V. M., Yurkov, G. Yu, Sorokin, N. I.
Format: Artikel
Sprache:eng
Schlagworte:
Asymptotic properties
Ceramics
Chemistry
Chemistry and Materials Science
Crystallites
Glass
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Molybdenum
Nanocomposites
Resistivity
Strontium
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Zusammenfassung:This work examines the effect of KBF 4 additions on the crystallization behavior of glasses based on the multicomponent systems MO-Bi 2 O 3 -B 2 O 3 with M = Ca, Sr, and Ba. The glass-ceramic composites obtained contain a δ-Bi 2 O 3 -based crystalline phase with a crystallite size of ≃7 nm, evenly distributed over the glass matrix. The 400°C electrical conductivity of the nanocomposites reaches 2 × 10 −4 S/cm, and the activation energy is 1.1 eV, typical of anion conduction. These values are comparable to those reported for δ-Bi 2 O 3 ceramics.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168510040205