Glass composite dielectrics consisting of calcium aluminoborosilicate glass and nitride fillers such as aluminum nitride, boron nitride, and silicon nitride (AlN, BN, and Si3N4) were investigated. Densification and crystallization behavior depended on the type of filler, filler content, and firing temperature. AlN was most promising in generating desirable densification and dielectric properties (k of ~7.2 and tanδ of ~0.003) at 850°C with progressive crystallization of common anorthite phase. BN tended to show no significant densification and suppression of crystallization. Si3N4 resulted in abnormal behavior of densification, which can be highlighted with certain expansion at higher temperatures, as well as unexpected crystallization of CaSiO3 and CaAl2SiO6.
|Journal||International Journal of Applied Ceramic Technology|
|Publication status||Published - 2013 Sept 1|
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0017983).
© 2012 The American Ceramic Society.
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry