Abstract：A stainless-steel-cased indium cell was utilized to precisely realize the indium melting and freezing plateaus using a continuous heat flux method. The liquidus temperatures of indium were determined by one linear fitting method, and the differences between the liquidus temperatures and the maximum values of the freezing plateaus were regarded as indicators for evaluating the quality of the indium cell. The results showed that these differences were within 0.27mK. Also, the vertical temperature uniformity within 16cm from the thermometer well bottom did not exceed 13mK. Therefore, the stainless-steel-cased cell can meet the requirements for high-precision temperature dissemination. In addition, the influence of furnance setting temperatures on the duration of the freezing plateau and supercooling were also studied.
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