A positron annihilation study of crystalline, quasicrystalline and amorphous Al-Mn-Si alloys

Abstract
A positron annihilation of Doppler broadening in crystalline, quasicrystalline and amorphous Al-Mn-Si alloys is presented. The density of trapping sites is found to be similar in the crystalline and quasicrystalline alloys but much greater in the amorphous alloy.