| 학회 |
한국재료학회 |
| 학술대회 |
2012년 가을 (11/07 ~ 11/09, 라카이샌드파인 리조트) |
| 권호 |
18권 2호 |
| 발표분야 |
A. 전자/반도체 재료(Electronic and Semiconductor Materials) |
| 제목 |
Dielectric Properties of Willemite Glass-Ceramics at Microwave Frequencies |
| 초록 |
Willemite (Zn2SiO4) glass-ceramics with TiO2 were prepared by a conventional melting and heat-treated crystallization method to develop new microwave dielectric materials with a low heat-treatment temperature. The dependence of microwave dielectric properties on the crystallization behaviours of the specimens was investigated. TiO2 addition decreased the activation energy of crystallization and increased the degree of crystallization. These results induced the reduction of heat-treatment temperature without degradation of the microwave dielectric properties. The dielectric constants (K) and quality factor (Qf) of the specimens depended on the density and degree of crystallization. The temperature coefficients of resonant frequency (TCF) of the specimens increased with increasing TiO2 content. The effects of microstructures on the microwave dielectric properties were also discussed. |
| 저자 |
Chang Jun Jeon1, Eung Soo Kim2
|
| 소속 |
1Department of Materials Engineering, 2Kyonggi Univ. |
| 키워드 |
Microwave dielectric properties; Glass ceramics; Willemite
|
| E-Mail |
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