| 학회 |
한국재료학회 |
| 학술대회 |
2013년 가을 (11/06 ~ 11/08, 제주롯데호텔) |
| 권호 |
19권 2호 |
| 발표분야 |
A. 전자/반도체 재료(Electronic and Semiconductor Materials) |
| 제목 |
Microwave Dielectric Properties of CaMgSi2O6-Ca0.9Mg0.1SiO3 Glass Ceramics |
| 초록 |
The microwave dielectric properties and phase analysis of (1-x)CaMgSi2O6-(x)Ca0.9Mg0.1SiO3 glass ceramics was investigated. The crystalline phases were identified by diopside with pyroxene structure along with wollastonite structure. With increase of Ca0.9Mg0.1SiO3 content, the fraction of wollastonite structure increased and the peak shifted to lower degree due to the larger Ca ions (1.06Å) partially substituted Mg site (0.78Å). The dielectric constant (ɛr) of decreased with content of Ca0.9Mg0.1SiO3 due to the smaller dielectric constant (ɛr) of CaSiO3 (6.49) and MgSiO3 (6.83) than CaMgSi2O6 (7.1). The density of the specimens was increased with Ca0.9Mg0.1SiO3 content, which improved the quality factor (Qf) of the specimens. The temperature coefficient of resonant frequency (TCF) of the specimens increased with Ca0.9Mg0.1SiO3 content. The dependence of microwave dielectric properties on sintering temperature and crystal structural characteristics also discussed. |
| 저자 |
장성욱1, 어영준2, 김응수2
|
| 소속 |
1경기대 신소재공학과, 2경기대 |
| 키워드 |
microwave dielectric property; wollastonite
|
| E-Mail |
|
