抄録
For powder layer process of additive manufacturing, alumina granule containing methylcellulose as organic binder was used to form a firm powder layer by spraying water to the granule, and the powder layers were stacked to obtain a green body. Good shape retention with bonded alumina granules was confirmed in the green body. Debinding and post-sintering of the green body were conducted, resulting in an alumina sintered body without visible gap or interface between the stacked layers.