Strain affected properties of icosahedral Al-Pd-Mn single ingot

Some physical properties of the Al-Pd-Mn icosahedral quasicrystal are drast ically changed by inhomogeneous strain distribution, as exemplified for the electrical resistivity and the Vickers hardness. In order to reveal the in trinsic properties of the Al-Pd-Mn icosahedral alloy, the study on the rela tion between the strain and the properties was investigated. By the full an neal treatment (1000 K, 50 h), the anisotropies bf the electrical resistivi ty and the Vickers hardness are found to annihilate significantly with decr easing anisotropic strain distribution. And the intrinsic properties are es timated by the extrapolation from the relation between the strain and the p hysical property to the no strain state.