TY - GEN
T1 - Structure of Zr-Cu and Zr-Ni liquid alloys studied by high-energy x-ray diffraction
AU - Mizuno, A.
AU - Kaneko, T.
AU - Matsumura, S.
AU - Watanabe, M.
AU - Kohara, S.
AU - Takata, M.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - In order to obtain an insight into the high glass-forming ability of bulk metallic glasses, we have analyzed liquid structures of the Zr-Cu and the Zr-Ni binary alloys with different compositions. High-energy (E = 113 keV) x-ray diffraction experiments were carried out for the liquid alloys levitated by a conical nozzle levitation (CNL) technique. While a peculiar shoulder on the second peak was observed in the structure factors of the Zr-Cu liquid alloys, those of the Zr70Ni30 and the Zr50Ni 50O liquids exhibit an asymmetric shape of the second peak. In addition, it was found that the effect of concentration variation in the liquid Zr-Ni alloys was significantly different from that of the liquid Zr-Cu alloys. The liquid structure analyses using the reverse Monte Carlo (RMC) simulation have clarified that a degree of the short-range correlation between the constituents in the liquids affects substantially the glass-forming ability of the binary Zr alloys.
AB - In order to obtain an insight into the high glass-forming ability of bulk metallic glasses, we have analyzed liquid structures of the Zr-Cu and the Zr-Ni binary alloys with different compositions. High-energy (E = 113 keV) x-ray diffraction experiments were carried out for the liquid alloys levitated by a conical nozzle levitation (CNL) technique. While a peculiar shoulder on the second peak was observed in the structure factors of the Zr-Cu liquid alloys, those of the Zr70Ni30 and the Zr50Ni 50O liquids exhibit an asymmetric shape of the second peak. In addition, it was found that the effect of concentration variation in the liquid Zr-Ni alloys was significantly different from that of the liquid Zr-Cu alloys. The liquid structure analyses using the reverse Monte Carlo (RMC) simulation have clarified that a degree of the short-range correlation between the constituents in the liquids affects substantially the glass-forming ability of the binary Zr alloys.
KW - Conical nozzle levitation
KW - Liquid structure
KW - Metallic glass
KW - Synchrotron x-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=38349103999&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38349103999&partnerID=8YFLogxK
U2 - 10.4028/0-87849-462-6.1349
DO - 10.4028/0-87849-462-6.1349
M3 - Conference contribution
AN - SCOPUS:38349103999
SN - 0878494626
SN - 9780878494620
T3 - Materials Science Forum
SP - 1349
EP - 1352
BT - Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
PB - Trans Tech Publications Ltd
T2 - 6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
Y2 - 5 November 2007 through 9 November 2007
ER -