以水玻璃为溶胶、以SiO2气溶胶粉末和磁性γ-Fe2O3粉末为填料,通过浸渍挂浆、凝胶、无机化等步骤,对三维连通网络陶瓷的介电常数和磁导率进行了改性.结果表明,填加SiO2气溶胶粉末可以有效降低网络陶瓷的介电常数,控制SiO2气溶胶的填加量可以实现网络陶瓷介电常数的连续可调.填加磁性材料亦可以在一定范围内改变网络陶瓷的磁导率.在水玻璃溶胶浆料中加入不高于10%(质量分数)的SiO2气溶胶粉末,可使网络陶瓷的抗压性能显著提高;SiO2气溶胶粉末的填加量大于10%后,溶胶在网络陶瓷骨架表面及SiO2颗粒之间难以形成连续结合而使网络陶瓷的抗压强度下降.
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