Paper Title:
Origin of High Q for Microwave Complex Perovskite
  Abstract

Origins of high Q are considered on intrinsic as high symmetry, ordering structure and high density crystal structure. It was concluded that the high symmetry brings high Q instead of ordering comparing some cases as follows: As if ordering ratio of Ba(Zn1/3Ta2/3)O3 (BZT) is high of about 80%, Q values are distributed from low to high Q. Disordered BZT ceramics with high density obtained for short sintering time by spark plasma sintering (SPS) showed high Q. Ba(Zn1/3Nb2/3)O3 (BZN) with order-disorder transition showed high Q at disorder form sintered over the transition temperature. And, the disordered BZN with high Q annealed at lower temperature changed to order structure without improvement of Q.

  Info
Periodical
Key Engineering Materials (Volumes 421-422)
Edited by
Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki
Pages
77-80
DOI
10.4028/www.scientific.net/KEM.421-422.77
Citation
H. Ohsato, E. Koga, I. Kagomiya, K. Kakimoto, "Origin of High Q for Microwave Complex Perovskite", Key Engineering Materials, Vols. 421-422, pp. 77-80, 2010
Online since
December 2009
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Price
$32.00
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