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Amorphous phase separation in the metallic glasses (Pb1-ySby)1-xAu

Kim, C. O. and Johnson, W. L. (1981) Amorphous phase separation in the metallic glasses (Pb1-ySby)1-xAu. Physical Review B, 23 (1). pp. 143-149. ISSN 0163-1829.

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A novel family of ternary superconducting metallic glasses of the form (Pb1-ySby)1-xAux have been prepared by the method of melt quenching and studied by x-ray diffraction and electron microscopy. For y=0.5 and 0.25, and 0.35<x<0.7, measurements of superconducting properties suggest that these glasses are phase separated into two amorphous phases. X-ray-diffraction studies also suggest a phase separation. The two amorphous phases have been directly observed using electron microscopy and selected area electron diffraction. The scale of the domain structure is 1000-2000 Å. All of the superconducting properties measured can be understood in terms of the observed separation of amorphous phases.

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Additional Information:©1981 The American Physical Society Received 17 June 1980 One of the authors (C.O.K.) wishes to thank the Korean Ministry of Education for providing support for his stay at Caltech. This work was carried out under contract for the U.S. DOE Contract No. DE-AC03-76ER00822.
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Deposited On:03 Sep 2006
Last Modified:02 Oct 2019 23:15

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