1996 年 4 巻 1 号 p. 103-116
The studies on sintering Al2O3 are reviewed, highlighting epochs of historically commendable investigations of Coble, Kingery, Brook, Harmer, and Glaeser. The concepts of sintering map, sintering diagram of pore-grain boundary, and dihedral angle are discussed with reference to pore elimination. Further, quantitative treatment of the isotropic grain growth are also reviewed.