Abstract
The measurements of surface tension, viscosity, and density of metallic samples are described in this article. Samples are brought to their melting point by exposure to a radio-frequency–inductively coupled plasma (RF-ICP) torch. The measurements are based on oscillations in free-falling drops and the damping rate of the oscillations. The results of the measurements performed on copper and nickel samples showed a reasonable agreement with values calculated by other methods, such as drop-weight, pendant-drop, and drop-profile methods. According to the characteristics of this method, analysis of very high-temperature materials, such as refractories and ceramics, is possible.
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