抄録
Al_2O_3-Al composite materials were made by Spark Plasma Sintering (SPS). Al_2O_3 powder were used alumite sludge which is an industry waste, and the alumite sludge had heat treatment at 1573K for 2 hours. From the analysis of variance of bending strength, it becomes obvious that the factors of the sludge amount, the pressure and the heating temperature contribute to improve the bending strength.
