This study delves into the phase transformations of fifteen pure elements utilizing a synergistic approach combining arc-melting, a pyrometer, and its temperature vs. time output. Employing cooling curve recording tactics during arc-melting with an elite temporal resolution pyrometer unravels double recalescence in refractory metals (‘Mo,’ ‘Nb,’ ‘Ta,’ ‘W’). Metalloids, including ’B,’ ’Si,’ and ’Ge,’ exhibit unique characteristics, with ’Si’ showcasing a gravity-defying protrusion along the temperature gradient. The pyrometer’s output for fcc (‘Ni,’ ‘Co’) and bcc (‘Hf,’ ‘Mo,’ etc.) primary solidifying phases is synonymous. Recalescence striations in the cooling graph depict a balance between factors favoring and impeding nucleation. In cases of ambiguous pyrometer signals, the implementation of an alternative approach enhances the quality of the temperature vs. time graph. In the future, a fresh contact method design concept in this study would address other pyrometer limitations, such as repeatability concerns and constant emissivity value usage in an entire experiment.

中文翻译：

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通过超慢温度与时间曲线测量揭示纯元素的凝固路径

这项研究利用结合电弧熔化、高温计及其温度与时间输出的协同方法，深入研究了 15 种纯元素的相变。在电弧熔化过程中采用冷却曲线记录策略，使用精英时间分辨率高温计揭示了难熔金属（“Mo”、“Nb”、“Ta”、“W”）中的双重重辉现象。准金属，包括“B”、“Si”和“Ge”，表现出独特的特性，其中“Si”沿着温度梯度呈现出抗重力的突起。 fcc（“Ni”、“Co”）和 bcc（“Hf”、“Mo”等）初级凝固相的高温计输出是同义的。冷却图中的重辉条纹描绘了有利于和阻碍成核的因素之间的平衡。在高温计信号不明确的情况下，采用替代方法可以提高温度与时间图的质量。将来，本研究中的新接触方法设计概念将解决其他高温计限制，例如重复性问题和整个实验中恒定发射率值的使用。