分别采用3种规则形状的氧化铝为骨料,添加一定量的烧结助剂,通过干压成型法制备多孔支撑体.考察了粉体颗粒参数(形状、粒径分布)对支撑体机械性能、微结构以及渗透性能的影响.研究表明:以椭球形氧化铝为骨料,添加质量分数0.6％的烧结助剂,在1 600℃烧成的多孔陶瓷膜支撑体三点弯曲强度达到80 MPa以上,孔径为3.34μm,孔隙率为34.8％,纯水渗透率在500 m3/(m2·h·MPa)以上.
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