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Shifting τf Value of (Mg0.95Co0.05)TiO3 Ceramics by Ca0.61Nd0.78/3TiO3 Addition
被引:3
|作者:
Chen, Ping-Cheng
[1
]
Pan, Chung-Long
[2
]
Lin, Wei-Cheng
[2
]
Shen, Chun-Hsu
[3
]
机构:
[1] I-Shou Univ, Dept Commun Elect Engn, 1,Sec 1,Syuecheng Rd, Dashu Township 840, Kaohsing County, Taiwan
[2] I-Shou Univ, Dept Elect Engn, Saga 840, Japan
[3] Natl Chin Yi Univ Technol, Dept Elect Engn, Nagaizumi, Shizuoka 411, Japan
来源:
关键词:
dielectricceramics;
near-zerotemperature coefficient of resonate frequency;
DIELECTRIC-PROPERTIES;
RESONATOR;
D O I:
10.4028/www.scientific.net/AMR.807-809.2703
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
Modification of (Mg0.95Co0.05)TiO3 ceramics by Ca0.61Nd0 78/3TiO3 addition was investigated. The Ca0.61Nd0.78/3TiO3 content plays a significant role in improving the dielectric properties. Microwave dielectric measurement showed an increase in dielectric constant (epsilon(r)) and temperature coefficient of the resonant frequency(tau(f))and a decrease in Q value with increasing Ca0.61Nd0.78/3TiO3 content. By properly adjusting the Ca0.61Nd0.78/3TiO3 content, zero temperature coefficient of resonate frequency tau(f) can also be obtained. It becomes more promising in the application of wireless system. At 1375 degrees C, the 0.85(Mg0.95Co0 05)TiO3-0.15Ca(0 61)Nd(0.78/3)TiO(3) ceramics possesses excellent microwave dielectric properties: a dielectric constant epsilon(r) of 24.37, a Qx f value of 66200 (at 7 GHz) and a tau(f) value of -1.4 ppm/degrees C.
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页码:2703 / +
页数:2
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