Structural Stability and Microwave Dielectric Properties of (1-x)Ba(Mg1/2W1/2)O3−xBa(RE2/3W1/3)O3 (RE = Sm, Dy, Y, Yb) Solid Solutions

Jianjiang Bian, Jiayin Wu, Rick Ubic, C. Karthik, Y. Wu

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The structural stability and microstructure of (1-x)Ba(Mg1/2W1/2)O3-xBa(RE2/3W1/3)O3 (RE=Sm, Dy, Y, Yb) ceramics have been investigated by X-ray diffraction (XRD), Raman spectrometry, transmission electron microscopy (TEM) and scanning electron microscopy (SEM) in this work. Microwave dielectric properties were studied in the frequency range 7-13GHz. Phase-pure solid solutions formed in space group Fm-3m within the compositional range of x=0.01-0.05. The local ordering of the two cations (RE3+ and W6+or Mg2+) produced an internal lattice-induced strain and charge-imbalance clusters which greatly affected the structural stability and Q×f value.

Original languageAmerican English
Pages (from-to)1431-1439
Number of pages9
JournalJournal of the European Ceramic Society
Volume35
Issue number5
DOIs
StatePublished - 1 May 2015

Keywords

  • double perovskite
  • microwave dielectric properties
  • structural stability
  • short-range ordering

EGS Disciplines

  • Materials Science and Engineering

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