Crystal structural characterization of Nd2BaZnO5-type microwave dielectric ceramics with rare-earth substitutions for Nd

被引：3
作者：
Mori, K
Ogawa, H
Kan, A
Ohsato, H
Ishihara, S
机构：
[1] Meijo Univ, Fac Sci & Technol, Tenpaku Ku, Nagoya, Aichi 4688502, Japan
[2] Nagoya Inst Technol, Dept Mat Sci & Engn, Showa Ku, Nagoya, Aichi 4668555, Japan
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2003年 / 79卷 / 2-3期
关键词：
(Nd2-xRx)BaZnO5; microwave dielectric property; Rietveld analysis; Q(.)f value;
D O I：
10.1016/S0254-0584(02)00275-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of R (R = Sm, Pr and La) substitutions for Nd of the (Nd2-xRx)BaZnO5 solid solutions on the crystal structure and microwave dielectric properties were studied, and the lattice parameters of (Nd2-xPrx)BaZnO5 and (Nd2-xLax)BaZnO5 solid solutions were linearly increased with increasing the composition x, whereas those of (Nd2-xSmx)BaZnO5 solid solutions are linearly decreased. The maximum Q(.)f value is obtained when La2BaZnO5 was synthesized, and the microwave dielectric properties are: epsilon(r) = 20.3, tau(f) = -0.9 ppm/degreesC and Q(.)f = 17832 GHz, respectively. (C) 2002 Elsevier Science B.V All rights reserved.
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收藏
页码：273 / 275
页数：3
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