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Effect of La/K A‐site Substitutions on the Ordering of Ba(Zn 1/3 Ta 2/3 )O 3
Author(s) -
Lee ChengChang,
Chou ChenChia,
Tsai DahShyang
Publication year - 1997
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1997.tb03207.x
Subject(s) - raman spectroscopy , crystallography , diffraction , chemistry , potassium , x ray crystallography , materials science , physics , metallurgy , optics
The 1/3 <111>‐type ordering of Ba(Zn 1/3 Ta 2/3 )O 3 (BZT) can be transformed to 1/2 <111>–type ordering by substituting the La 3+ cation into the A site. The 1/3 <111> ordering in BZT is shown to be reduced, discontinued, and then replaced by 1/2 <111> ordering, using X–ray diffraction, electron microscopy, and Raman spectroscopy. On the other hand, potassium–substituted BZT only displays a reduction in the degree of ordering.