| Preparation of Porous Silica Ceramics with Low Dielectric Constant |
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| 作者姓名： | MAO Xiao-jiana b WANG Shi-weia * SHIMAI Shun-zoa aShanghai Institute of Ceramics Chinese Academy of Science Shanghai China bGraduate School of Chinese Academy of Science Beijing China |
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| 作者单位： | MAO Xiao-jiana，b，WANG Shi-weia，*，SHIMAI Shun-zoa aShanghai Institute of Ceramics，Chinese Academy of Science，Shanghai 200050，China bGraduate School of Chinese Academy of Science，Beijing 100039，China |
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| 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.
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Preparation of Porous Silica Ceramics with Low Dielectric Constant |
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| MAO Xiao-jiana,b,WANG Shi-weia,*,SHIMAI Shun-zoa aShanghai Institute of Ceramics,Chinese Academy of Science,Shanghai ,China bGraduate School of Chinese Academy of Science,Beijing ,China.Preparation of Porous Silica Ceramics with Low Dielectric Constant[J].Chinese Journal of Aeronautics,2006,19(Z1). |
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| Authors: | MAO Xiao-jian WANG Shi-wei SHIMAI Shun-zo |
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| Abstract: | 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 constant 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. |
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| Keywords: | porous ceramics SiO2 starch consolidation casting bending strength dielectric properties |
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