Nonstoichiometric Addition of ZrO2 and NiO to the Ba(Zn1/3Ta2/3)O3 Microwave Dielectrics

Title
Nonstoichiometric Addition of ZrO2 and NiO to the Ba(Zn1/3Ta2/3)O3 Microwave Dielectrics
Authors
남경덕강성우김태희심수만최선희김주선
Keywords
Ba(Zn1/3Ta2/3)O3; Microwave; Nonstoichiometric; NiO; ZrO2
Issue Date
2011-12
Publisher
전기전자재료학회논문지 (Journal of KIEEME)
Citation
VOL 24, NO 12, 955-961
Abstract
We investigated the physical properties of stoichiometric and non-stoichiometric oxide doped complex perovskite, Ba(Zn1/3Ta2/3)O3 ceramics and their impacts on the microwave dielectric performances using various characterization techniques such as X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and network analyzer. According to the measurement of lattice constant changes, anomalous lattice volume contraction of ZrO2 doped Ba(Zn1/3Ta2/3)O3 sample only showed the dielectric quality factor enhancements, which was due to the lattice volume contraction as well as the 1:2 B-site cation ordering. In addition, NiO doping was useful to the stabilization of temperature coefficient of resonance frequency.
URI
http://pubs.kist.re.kr/handle/201004/41367
ISSN
1226-7945
Appears in Collections:
KIST Publication > Article
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