TY - JOUR
T1 - Volume change in Zr50Cu40Al10 glassy alloys
AU - Yokoyama, Y.
AU - Yamasaki, T.
AU - Liaw, P. K.
AU - Buchanan, R. A.
AU - Inoue, A.
N1 - Funding Information:
We wish to thank Prof. T. Egami from the University of Tennessee for his valuable advice. This research was supported by New Energy and Industrial Technology Development Organization (NEDO). The authors are grateful to the Nanotechnology Support Project of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan, for technical support of this research. We appreciate the financial support provided by the U.S. National Science Foundation, the Integrative Graduate Education and Research Training (IGERT) program (DGE-9980948), the combined Research and Curriculum Department (CRCD) program (EEC-0203415), and the International Materials Institutes (IMI) program.
PY - 2007/5/31
Y1 - 2007/5/31
N2 - Quaternary Zr47Cu40Al10M3 (M: IVA ∼ VIA), Zr50Cu37Al10M3 (M: VIIA ∼ IB), and Zr50Cu40Al7M3 (M: IIB∼) bulk glass alloys (BGAs) were examined to clarify the glassy structure of Zr50Cu40Al10 BGA. The glass structural difference was evaluated by the volume change due to structural relaxation at the glass-transition temperature (Tg); the volume shrinkage was estimated using density measurement. The results indicated that Pd, Ag, Pt, and Au, which are characterized by a filled d-shell electron structure, are effective for enhancing volume expansion in a glass structure. Furthermore, the volume changes in quaternary Zr-Cu-Al-M BGAs could be classified into two groups. This implies a difference in glass structure between the Zr50Cu37Al10M3 (M = Pd, Ag, Pt, and Au) BGA and others examined in this study.
AB - Quaternary Zr47Cu40Al10M3 (M: IVA ∼ VIA), Zr50Cu37Al10M3 (M: VIIA ∼ IB), and Zr50Cu40Al7M3 (M: IIB∼) bulk glass alloys (BGAs) were examined to clarify the glassy structure of Zr50Cu40Al10 BGA. The glass structural difference was evaluated by the volume change due to structural relaxation at the glass-transition temperature (Tg); the volume shrinkage was estimated using density measurement. The results indicated that Pd, Ag, Pt, and Au, which are characterized by a filled d-shell electron structure, are effective for enhancing volume expansion in a glass structure. Furthermore, the volume changes in quaternary Zr-Cu-Al-M BGAs could be classified into two groups. This implies a difference in glass structure between the Zr50Cu37Al10M3 (M = Pd, Ag, Pt, and Au) BGA and others examined in this study.
KW - Bulk glassy alloy
KW - Glass structural change
KW - Small addition elements
KW - Young's modulus
KW - ZrCuAl
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U2 - 10.1016/j.jallcom.2006.08.320
DO - 10.1016/j.jallcom.2006.08.320
M3 - Article
AN - SCOPUS:33947577226
VL - 434-435
SP - 160
EP - 163
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - SPEC. ISS.
ER -