Abstract
A super-absorbent polymer was fixed on alumina particles to prepare water-holding alumina powder. A mixture of alumina powder and water has various apparent viscosities between 800 and 90000Pa·s depending on the content and the condition of heat treatment of the super-absorbent polymer. This mixture was injection-molded at room temperature. The dried moldedbody has a high bending strength, about 30MPa, and densifies above 1350°C.