Structural Stability and Microwave Dielectric Properties of (1-x)Ba(Mg_1/2W_1/2)O_3−xBa(RE_2/3W_1/3)O₃ (RE = Sm, Dy, Y, Yb) Solid Solutions

Authors

Jianjiang Bian, Shanghai University
Jiayin Wu, Shanghai University
Rick Ubic, Boise State UniversityFollow
C. Karthik, Boise State UniversityFollow
Y. Wu, Boise State UniversityFollow

Document Type

Article

Publication Date

5-2015

Abstract

The structural stability and microstructure of (1−x)Ba(Mg_1/2W_1/2)O_3−xBa(RE_2/3W_1/3)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 7–13 GHz. 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.

Publication Information

Bian, Jianjiang; Wu, Jiayin; Ubic, Rick; Karthik, C.; and Wu, Y.. (2015). "Structural Stability and Microwave Dielectric Properties of (1-x)Ba(Mg_1/2W_1/2)O_3−xBa(RE_2/3W_1/3)O₃ (RE = Sm, Dy, Y, Yb) Solid Solutions". Journal of the European Ceramic Society, 35(5), 1431-1439. https://doi.org/10.1016/j.jeurceramsoc.2014.11.015