Far-infrared reflectivity spectra and influence of thermally induced strain on quality factor of MgTiO3 ceramics at microwave frequencies

被引：6
|
作者：
Yoo, SH
Yoon, KH
Choi, JW
Yoon, SJ
机构：
[1] Korea Inst Sci & Technol Informat, Dept Technol Diffus, Seoul 130742, South Korea
[2] Yonsei Univ, Dept Ceram Engn, Seoul 120749, South Korea
[3] Korea Adv Inst Sci & Technol, Thin Film Mat Res Ctr, Seoul 130650, South Korea
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2004年 / 43卷 / 3A期
关键词：
quality factor; far infrared reflectivity spectra; XRD; MgTiO3; thermal strain; cooling rate; lattice anharmonicity;
D O I：
10.1143/JJAP.43.L343
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The influence of thermally induced strain on quality factor of MgTiO3 ceramics at microwave frequencies via far-infrared reflectivity spectra and X-ray diffraction was investigated as a function of cooling rate. As the cooling rate increased, the crystallographic strain increased and Q(.)f value decreased, which were confirmed via X-ray diffraction and far-infrared reflectivity spectra. This result was attributed to the thermally induced strain and lattice anharmonicity.
引用
收藏
页码：L343 / L345
页数：3
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