The Anomalous Temperature Dependence of Positron Annihilation in Dilute Al-Li and Al-Mg Alloys
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概要
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The result of thermal equilibrium measurements of aluminum and aluminum dilutealloys was reported. We applied the high precision measurements of the Dopplerbroadened lineshapes of annihilation radiations to pure aluminum and aluminumbased dilute alloys (AN-0.50 at.%Li and Al-0.50 at.'%Mg). A typical temperaturedependence of the lineshape parameter was observed in pure aluminum. On the otherhand, a drastic increase in the lineshape parameter near melting point was observed inthe dilute alloys, contrary to the result reported by Hashimoto et al. (J. Phys. F 14(1984) 879).Ipositron annihilation, point defects, Al alloys, vacancy-solute interaction, ther- ll mat equilibrium defectsl
- 社団法人日本物理学会の論文
- 1990-08-15
著者
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TANIGAWA Shoichiro
Institute of Materials Science, The University of Tsukuba
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KURIHARA Toshikazu
Institute of Materials Science, University of Tsukuba
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Kurihara Toshikazu
Institute Of Materials Science University Of Tsukuba
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Tanigawa Shoichiro
Institute Of Applied Physics University Of Tsukuba
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Tanigawa Shoichiro
Institute Of Materials Science University Of Tsukuba
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Kurihara T
Tokyo Inst. Technology Tokyo
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