Abstract
During sintering of porous compacts made from aluminum-copper mixed powders, an eutectic alloy of Al-33% Cu appearing by the alloying reaction between copper and aluminum powders melts away over the eutectic temperature (548°C), and spreads into inherent voids in the compacts. New coarse pores consequently appear at the position of the copper powders. Thereupon, the new pores are called "melt-off pores."
It is an aim of the anthers to show the results of observations on the melt-off pores of sintered aluminum-5%copper compacts by the use of Scanning Electron Microscope.
