X-ray diffraction experiments on In30Sn70 from normal liquid to solidus

X-ray diffraction experiments on In30Sn70 from normal liquid to solidus
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In30Sn70从常液到固相线的X射线衍射实验

DOI:
10.1016/j.physleta.2006.03.077
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发表时间:
2006-08
期刊:
影响因子:
2.6
通讯作者:
Qin, Xubo
Qin, Xubo
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Bian, Xiufang;Hou, Xiaoxia;Zhao, Yan;Qin, Jingyu;Qin, Xubo

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对常液400℃下的In{sub 30}Sn{sub 70}二元合金进行了X射线衍射实验。 C至固相线125℃附近的温度。 C(T{sub l}和T{sub m}分别约为172和120℃)。结果表明,随着温度的降低,相关半径r{sub c}、相关长度D和原子数N{sub c}在液相线附近急剧增加。这表明成核过程中结构发生突然变化。这一结果与我们最近对 Cu{sub 80}Ag{sub 20} 合金的研究不同,后者在液相线附近表现出稳定的结构变化。此外,与粘度测量值相比的配位数N{sub min}表明温度和组分引起的不连续结构变化区域在约165度和145度之间。 C.
X-ray diffraction experiment has been carried out on In{sub 30}Sn{sub 70} binary alloy from normal liquid 400 deg. C to the temperature near the solidus 125 deg. C (T{sub l} and T{sub m} is about 172 and 120 deg. C, respectively). The results show that the correlation radius r{sub c}, the correlation length D and the atom numbers N{sub c} have an abrupt increase near the liquidus with the temperature decreasing. Which indicates an abrupt structure change in the nucleus forming process. This result is different from our recent study on Cu{sub 80}Ag{sub 20} alloy, which show a stable structure change around the liquidus. In addition, the coordination number N{sub min} comparing with the viscosity measurement indicates a temperature and component induced discontinuous structural change region between about 165 and 145 deg. C.
DOI: 10.1103/physreve.65.016110
发表时间: 2001-10
期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子: --
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