Mesoporous glass films supported on α-Al_2O_3

摘要

Glass-alumina composites were developed for possible use as membrane supoorts. Preparation involved involoved dip-coating of α-AL_2o_3 tubes with a suspension of borosilicates glass particles (9.1/100 Na_2O-29.7/100 B_2O_3-61.2/100 sIo_2), sintering to convert the particle layer into a nonporous layer of phase separated glass, and leaching the glass with a strong acid to remove the soluble phase and obtain the final porous layer of about 10 um thickness.