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以海泡石矿物为原料,通过干压成型制备了氧化硅( SiO2)基多孔陶瓷膜支撑体,研究了烧成温度对制备试样的物相组成、微观结构、平均孔径、孔隙率、纯水渗透通量和抗弯强度的影响.结果表明,经1100 ~ 1200℃保温2h烧成制备的SiO2基多孔陶瓷支撑体试样主要由石英主晶相和少量滑石晶相组成,具有良好的结构与性能,可用于SiO2复合陶瓷膜的制备.1200℃烧成制备的试样孔隙率和平均孔径分别为31.4%和1.72 μm,其水通量和抗弯强度分别可达到20.30 m3·m-2·h-1·bar-1和61.0 MPa.

参考文献

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