Preparation of Porous Silica Ceramics with Low Dielectric Constant

被引：1

作者：

MAO XiaojianabWANG ShiweiaSHIMAI Shunzoa aShanghai Institute of CeramicsChinese Academy of ScienceShanghai China bGraduate School of Chinese Academy of ScienceBeijing China ^{[200050
,100039
]}

机构：

来源：

Chinese Journal of Aeronautics | 2006年 / S1期

关键词：

porous ceramics; SiO2; starch consolidation casting; bending strength; dielectric properties;

D O I：

暂无

中图分类号：

TN304 [材料];

学科分类号：

0805 ; 080501 ; 080502 ; 080903 ;

摘要：

Porous silica ceramics has been prepared with the starch consolidation casting method. Slurries with various fractions of starch added in were prepared by ball-milling. The evaluation of the microstructures was done through two techniques: Hg porosimetry and SEM investigation. The bending strength of the sintered samples varied within the range of 10 MPa-20 MPa and the low dielectric con-stant within the range of 2.0-2.4 correspondent with the porosity of 42%-56%. The ceramics holds a brilliant promise of being a kind of core material used in sandwich-like electromagnetic windows.

引用

页码：239 / 243

页数：5