| 학회 |
한국재료학회 |
| 학술대회 |
2012년 가을 (11/07 ~ 11/09, 라카이샌드파인 리조트) |
| 권호 |
18권 2호 |
| 발표분야 |
A. 전자/반도체 재료(Electronic and Semiconductor Materials) |
| 제목 |
Microwave Dielectric Properties of (Ca1-xMgx)SiO3 Glass-Ceramics |
| 초록 |
Effects of crystallization behaviours on the microwave dielectric properties of (Ca1-xMgx)SiO3 glass-ceramics were investigated. The crystallization behaviours of glasses were confirmed from the peak temperature of crystallization, degree of crystallization, crystallite size, and crystalline phases (wollastonite (CaSiO3), diopside (CaMgSi2O6), and clinoenstatite (MgSiO3)). With increasing heat-treatment temperature, the dielectric constants (K) and quality factor (Qf) of the specimens increased due to the increase of density and degree of crystallization, while the temperature coefficients of resonant frequency (TCF) were not changed remarkably. The K of the specimens with different amounts of Mg2+ was affected by the crystalline phases at a given heat-treatment temperature. The Qf of the specimens with diopside (CaMgSi2O6) was promoted to the maximum value. Good thermal stability of resonant frequency (zero TCF) was obtained for the specimens with TiO2. |
| 저자 |
Chang Jun Jeon1, Eung Soo Kim2
|
| 소속 |
1Department of Materials Engineering, 2Kyonggi Univ. |
| 키워드 |
Microwave dielectric properties; Glass ceramics; Wollastonite; Diopside; Clinoenstatite
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| E-Mail |
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