On the correlation between solidified microstructures and liquid structural states in Bi-40 wt%Te alloy

作者: Zhong-Yue Huang , Yun Xi , Fang-Qiu Zu , Xian-Fen Li , Guo-Hua Ding

DOI: 10.1016/J.JCRYSGRO.2009.06.046

关键词:

摘要: Abstract The compound-forming alloy Bi-40 wt%Te was selected to explore effects of the temperature-induced liquid–liquid structure transition (TI-LLST) on solidification. resistivity–temperature pattern molten suggested that an irreversible TI-LLST occurred from 694.6 723.2 °C as temperature elevated. When solidified melt undergoing TI-LLST, solidification undercooling primary phase Bi 2 Te 3 enlarged and its growth manner obviously changed, resulting in spirally curling refined branches, contrary orientated thick rod-like crystals failed undergo TI-LLST. Moreover, volume fraction peritectic increased 30.6% 56.4%, which implied competition behavior during reaction also changed.

参考文章(25)
Thaddeus B Massalski, Hiroaki Okamoto, PRnbsp Subramanian, Linda Kacprzak, William W Scott, None, Binary alloy phase diagrams ASM International. ,vol. 3, pp. 2874- ,(1986)
Pablo G. Debenedetti, Metastable Liquids: Concepts and Principles ,(1996)
Xian-Fen Li, Fang-Qiu Zu, Hou-Fu Ding, Jin Yu, Lan-Jun Liu, Qiang Li, Yun Xi, Anomalous change of electrical resistivity with temperature in liquid Pb–Sn alloys Physica B-condensed Matter. ,vol. 358, pp. 126- 131 ,(2005) , 10.1016/J.PHYSB.2004.12.037
Fangqiu Zu, Guohua Ding, Xianfen Li, Change in solidification behavior of Bi Sb10 alloy after liquid structural transition Journal of Crystal Growth. ,vol. 310, pp. 397- 403 ,(2008) , 10.1016/J.JCRYSGRO.2007.10.031
C Notthoff, H Franz, M Hanfland, D.M Herlach, D Holland-Moritz, G Jacobs, R Lippok, W Petry, D Platzek, Energy dispersive X-ray diffraction on undercooled metallic melts Journal of Non-Crystalline Solids. ,vol. 250-252, pp. 632- 636 ,(1999) , 10.1016/S0022-3093(99)00287-2
Z.G Zhu, F.Q Zu, L.J Guo, B Zhang, Internal friction method: suitable also for structural changes of liquids Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 370, pp. 427- 430 ,(2004) , 10.1016/J.MSEA.2003.07.021
Yuan Deng, Chang-Wei Cui, Ni-La Zhang, Tian-Hao Ji, Qing-Lin Yang, Lin Guo, Bi2Te3–Te nanocomposite formed by epitaxial growth of Bi2Te3 sheets on Te rod Journal of Solid State Chemistry. ,vol. 179, pp. 1575- 1580 ,(2006) , 10.1016/J.JSSC.2006.02.014
Jun Wang, Shuxian He, Baode Sun, Ke Li, Da Shu, Yaohe Zhou, Effects of melt thermal treatment on hypoeutectic Al–Si alloys Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 338, pp. 101- 107 ,(2002) , 10.1016/S0921-5093(02)00067-9
Yan Zhao, Xiufang Bian, Xubo Qin, Jingyu Qin, Xiaoxia Hou, X-ray diffraction experiments on In30Sn70 from normal liquid to solidus Physics Letters A. ,vol. 356, pp. 385- 391 ,(2006) , 10.1016/J.PHYSLETA.2006.03.077