直接凝固注模成型（DCC）是一种新的近净尺寸的陶瓷成型技术；但湿坯强度较低（与注凝成型和注射成型相比）．为了提高Al2O3直接凝固成型后的坯体强度，在Al2O3－DCC过程中引入AlOOH本文系统考察了Al2O3＋AlOOH体系的电动特性、流变性及凝固过程．重点讨论了AlOOH加入对体系凝固行为，如活性酶添加量、固化过程动力学的影响．
Direct Coagulation Casting (DCC) is a novel near net shape process for ceramics materials. However, the green body strength by DCC is low compared with gelcasting
and injection molding. Boehmite sol was added for α-Al2O3-DCC in order to increase the green strength of alumina. In this paper, the characteristics of electrokinetics, rheology and coagulation process were invesigated for the system of Al2O3+AlOOH. In
special the effects of AlOOH addition on coagulation behaviours such as amount of enzyme and kinetics of consolidation process were discussed.
参考文献
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