The kinematic viscosity of the molten alloy Au55Pb22.5Sb22.5 was found to be extremely high, ranging from 0.32 S (stokes) at 400 °C to 0.25 S at 475 °C. At 475 °C a very sharp decrease begins, ending with a value of 0.53 cS (centistokes) at 500 °C. An anomaly in the electrical conductivity mimics the viscosity behavior but is broader in temperature. Differential scanning calorimetry reveals a small peak in specific heat in the vicinity of these anomalies.
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Lord et al. (1983) studied this question.
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