TY - JOUR
T1 - Glass-formation and crystallization processes in Ag-Y-Cu alloys
AU - Ketov, S. V.
AU - Louzguina-Luzgina, L. V.
AU - Churyumov, A. Yu
AU - Solonin, A. N.
AU - Miracle, D. B.
AU - Louzguine-Luzgin, D. V.
AU - Inoue, A.
N1 - Funding Information:
This work was supported by the “ World Premier International Research Center (WPI) Initiative for Atoms, Molecules and Materials ”, the Advanced Research Center of Metallic Glasses and by the Russian Ministry of Education and Science within the Federal program “Scientific and Scientific-Pedagogical Personnel of Innovate Russia” for 2009–2013 and with financial support of the Program of Creation and Development of the National University of Science and Technology “MISIS” .
PY - 2012/8/1
Y1 - 2012/8/1
N2 - Investigation of glass-formation and crystallization processes of several alloys of Ag-Y-Cu system was conducted. The samples were produced by melt spinning and Cu-mold casting. The structure of ribbon samples was examined by X-ray diffractometry and transmission electron microscopy. Phase transformations were studied by differential scanning and isothermal calorimetry and differential thermal analysis. Despite the large difference in atomic radii between the components in the investigated system, even being produced by melt spinning technique at high cooling rate, only Ag 61Y 29Cu 10 alloy with large supercooled liquid region was found to be X-ray amorphous. A principle for obtaining an alloy with high glass forming ability involving difference in atomic radii between the alloy components is considered. Efficient cluster packing model was also tested.
AB - Investigation of glass-formation and crystallization processes of several alloys of Ag-Y-Cu system was conducted. The samples were produced by melt spinning and Cu-mold casting. The structure of ribbon samples was examined by X-ray diffractometry and transmission electron microscopy. Phase transformations were studied by differential scanning and isothermal calorimetry and differential thermal analysis. Despite the large difference in atomic radii between the components in the investigated system, even being produced by melt spinning technique at high cooling rate, only Ag 61Y 29Cu 10 alloy with large supercooled liquid region was found to be X-ray amorphous. A principle for obtaining an alloy with high glass forming ability involving difference in atomic radii between the alloy components is considered. Efficient cluster packing model was also tested.
KW - Ag-Y-Cu alloys
KW - Amorphous structure
KW - Glass crystallization
KW - Glass-formation
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U2 - 10.1016/j.jnoncrysol.2012.05.012
DO - 10.1016/j.jnoncrysol.2012.05.012
M3 - Article
AN - SCOPUS:84862862756
SN - 0022-3093
VL - 358
SP - 1759
EP - 1763
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 15
ER -