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2010 | 8 | 4 | 639-642
Tytuł artykułu

Dielectric properties of Ba3Sr2DyTi3V7O30 ceramics

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A polycrystalline sample, Ba3Sr2DyTi3V7O30, with tungsten bronze structure was prepared by a mixed-oxide method at high temperature (950°C). Preliminary structural analysis of the compound showed an orthorhombic crystal structure at room temperature. Surface morphology of the compound was studied by scanning electron microscopy. The dielectric anomaly at 321°C may be attributed to the ferro-paraelectric phase transitions. This was also confirmed from the appearance of a hysteresis loop. The nature of variation of the ac conductivity and value of activation energy at different temperature regions, suggest that the conduction process is of mixed-type (i.e., ionic-polaronic and space charge generated from the oxygen ion vacancies).
Wydawca

Czasopismo
Rocznik
Tom
8
Numer
4
Strony
639-642
Opis fizyczny
Daty
wydano
2010-08-01
online
2010-05-22
Twórcy
  • Department of Physics, Betnoti College Betnoti, Mayurbhanj, Orissa, India
  • Department of Physics, D.N. College, Itanagar, Arunachal Pradesh, India
  • Department of Physics & Meteorology, IIT, Kharagpur, 721302, India
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-009-0130-9
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