Synthesis and properties of beta type Bi(III)(2-2x)Dy(II)(2x)O3-x square(x) solid solution
Yükleniyor...
Dosyalar
Tarih
2005
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the present work, tetragonal beta type Bi( III)(2-2x) Dy( II)(2x)O3- x square x (square: empty oxygen site) solid solutions have been synthesized in the ranges 0.06 <= x <= 0.08 at 750 degrees C and 0.05 <= x <= 0.09 at 800 degrees C by doping small amounts of Dy2O3 into monoclinic alpha-Bi2O3. X-ray powder diffraction (XRD) has been used for characterisation of the doped Dy2O3 powders as well as for calculation of the unit cell parameters. The polymorphic phase transitions, crystallographic properties, particle sizes, the scanning electron microscope (SEM) microprobe analysis and Dy2O3 content dependence of the lattice parameters of the observed beta-phase has been reported. The obtained solid solutions had nonstoichiometric character and nonstoichiometry increases with the increasing amount of Dy2O3 addition. The experimental results suggested that oxygen vacancies are present in the crystal structure of Dy2O3 doped type solid solutions.
Açıklama
Anahtar Kelimeler
Synthesis, Properties, β Type Bi, Crystal Structure
Kaynak
Journal Of Materials Science
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
40
Sayı
11
