Morphological Characterization of γ-Al2O3 Membranes Fabricated from Ammonium Aluminum Sulphate
Supported 0γ-Al<,2>O<,3> membranes without defects were prepared by the sol-gel procedure. The sol-gel method involved peptization of a boehmite (AIOOH) sol prepared from ammonium aluminium sulphate. The morphology of the supported membranes was characterized by scanning electron microscopy (SEM) and 3D rotational microscopy. Furthermore, the effects of different preparing conditions on morphological characteristics of the membrane were also investigated. The results show that PVA is a good crack-preventing agent and the morphology of supported membranes is affected by many factors, such as Al<,2>O<,3> and PVA contents of the sol, drying and sintering procedures and intrinsic defects on the substrate surface.
supported γ-Al<,2>O<,3> membrane ammonium aluminun sulphate sol-gel method morphology
Zhang Liangmiao (张良苗) Feng Yongli (冯永利) Lu Wencong (陆文聪) Chen Nianyi (陈念贻)
School of Material Science and Engineering, Shanghai University, Shanghai, 200072, China Department Department of Chemistry, Shanghai University, Shanghai 200444, China
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
410-414
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）