Study on Aqueous Colloidal Process for Preparation of Alumina Ceramic 氧化铝耐磨结构陶瓷的水溶性胶态成形工艺研究
In-situ colloidal forming of ceramics is the most promising method in making the near-net-shape and complicated ceramics, to which silica and alumina sol have been widely applied. 陶瓷原位胶态成形方法是制备近净尺寸复杂陶瓷部件最具应用前景的方法,硅溶胶、铝溶胶也越来越多的应用于其中。
High strength was obtained when colloidal alumina was used alone, and loss on ignition is as low as that of liquid alumina. 单独使用胶体氧化铝的陶瓷纤维纸,强度大,烧失量与单独使用液体氧化铝时的相近。
Our main effort is on the investigation of the hydrolysis process, including the non-ionic surfactant Pluronic 123 block copolymer ( P123) in micelle concentration of their colloidal size and the size in reaction system as well as the affection on structure of mesoporous alumina properties. 主要探讨了水解过程中,非离子表面活性剂Pluronic123嵌段共聚物(P123)的浓度变化对其形成胶束大小和反应体系胶体大小的影响,以及最终对介孔氧化铝结构性能的影响。
Alumina sol is a colloidal solution, which is positively charged alumina imperceptible particle dispersed in water. 铝溶胶是带正电的氧化铝微细粒子均匀分散在水中的胶体溶液。