Mechanical-chemical synthesis Ba0.77Sr0.23TiO3
Pavlović, Vladimir B.
Ristić, Momčilo M.
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Barium-Strontium-Titanate Ba0.77Sr0.23TiO3 was prepared from starting materials BaCO3, SrCO3 and TiO2 through solid-state reactions. Mixtures of these oxides are mechanically activated in a high-energy planetary ball mill at different time intervals from 0 to 120 minutes. In order to obtain information on phase composition, crystal structure was determent by X-ray diffraction. It was observed that after 80 minutes in process synthesis Ba0.77Sr0.23TiO3 started Thermal analyzes were performed in order to determine the characteristic temperatures of the processes that occur in the solid phase. Particle size distribution, together with electron microscopy scanning has given us very useful information about the morphology of the powder.
Ključne reči:mechanical activation / scanning electron microscopy / crystal structure / barium strontium titanate
Izvor:Science of Sintering, 2012, 44, 1, 47-55
- Belgrade : International Institute for the Science of Sintering
- Usmerena sinteza, struktura i svojstva multifunkcionalnih materijala (RS-172057)
- United States National Science Foundation (NSF) / Centers of Research Excellence in Science and Technology (CREST), Grant HRD-0833184
- United States National Aeronautics and Space Administration (NASA), Grant NNX09AV07A