A Study of the Realization of the Melting and Freezing Points of Silver
J Ancsin; J Ancsin; National Research Council of Canada, Division of Physics, Ottawa, Ontario, Canada, K1A OR6
Журнал:
Metrologia
Дата:
1989-01-01
Аннотация:
Freezing and melting behaviour of our silver sample was studied using conventional procedures and also using conditions that were nearly adiabatic in order to obtain an equilibrium melting curve. The results indicate that the freezing point of a silver sample of six-9s purity is reproducible well within one millikelvin, provided that experimental conditions to realize it are reproduced. the melting range from 10% liquid to the liquidus point is about 28 mK, and the freezing point obtained following a supercool can be one to several mK below the liquidus point, depending upon the freezing technique used.
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