首页|Dielectric Properties of Porous Si_3N_4 Ceramics Prepared by In situ Cordierite Bonding
Dielectric Properties of Porous Si_3N_4 Ceramics Prepared by In situ Cordierite Bonding
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NETL
NSTL
Trans Tech Publications Ltd
In situ bonding porous silicon nitride (Si_3N_4) ceramics were fabricated in air using a conventional ceramic process using Si_3N_4, Al_2O_3 and MgO as the starting materials. The effects of additives content, sintering temperature and holding time on phase composition, microstructure, dielectric properties and porosity were studied. The porous Si_3N_4 ceramics were composed of α- Si_3N_4, SiO_2 (cristobalite) and cordierite. Porous Si_3N_4 ceramics with porosities of 34.12～-50.22%, dielectric constant of 2.95～4.45 and dielectric loss of～0.0025 were obtained.
Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, P. R. China Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, P. R. China
NETL
NSTL
Trans Tech Publications Ltd
