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Journal of the Korean Ceramic Society 2000;37(4): 302. |
| 고주파대역에서 기판으로 쓰이는 Glass/Ceramics Composite의 소결거동 |
| 이찬주, 김형준, 최성철 |
| 한양대학교 세라믹공학과 |
| A sintering Behavior of Glass/Ceramic Composite used as substrate in High Frequency Range |
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| ABSTRACT |
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The objective of this study was to investigate the sintering behavior, crystallization characteristic of glass-ceramic and optimal sintering condition on the glass/ceramic composite for fabricating substrate of LTCC. Glass/ceramic composite was made from alumina powder and glass frit, which was composed of SiO2-TiO2-RO-PbO/(R: Ba, Sr, Ca), and was sintered for 0, 30, 60minutes in the temperature range from 700$^{circ}C$ to 1000$^{circ}C$. Properties of frit and glass/ceramic compsoite were analyzed by DTA, XRD, SEM and Network Analyzer and so on. Main sintering mechanism was densification occurred above 730$^{circ}C$ by viscous flow and crystallization starting about 780$^{circ}C$ affected sintering also. So viscous flow was affected by sintering temperature, duration time, and creation of crystallization phase etc. From this study, it was possible to fabricate glass/ceramic composite by changing sintering temperature and duration time. |
| Key words:
Glass/ceramic composite, LTCC, Substrate, Viscous flow, Crystallization |
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