Y-G Kim et al 1999 Metrologia 36 465 doi:10.1088/0026-1394/36/5/8
Y-G Kim, K S Gam and K H Kang
Show affiliationsA vertical alumina palladium (Pd) freezing-point cell was made and used for the calibration of noble metal thermocouples. Various characteristics of the freezing process were investigated using type B thermocouples, and the best method of freezing is discussed. It was found that the freezing behaviour was influenced by the thermal history: it is preferable to freeze the Pd melt completely before carrying out the next test. The thermocouple emfs during freezing were determined by calculating the average emf during the first 10 minutes of the plateau just after the depression in the supercooling curve. This emf was reproducible within a standard deviation of 0.1 °C. The expanded uncertainty of calibrating a type B thermocouple in the Pd freezing-point cell was estimated to be 1.0 °C at the 95% confidence level (k = 2).
64.70.D- Solid–liquid transitions
Issue 5 (October 1999)
Y-G Kim et al 1999 Metrologia 36 465
Jaroslav Mackerle 1997 Modelling Simul. Mater. Sci. Eng. 5 159
Hyesog Lee et al 2005 New J. Phys. 7 255
T Koponen et al 2006 New J. Phys. 8 179
Juan A Almendral et al 2007 New J. Phys. 9 183
Yousef I Salamin 2006 New J. Phys. 8 133
A Delgado et al 2002 New J. Phys. 4 37
W Weber et al 1999 New J. Phys. 1 9
J P Home et al 2006 New J. Phys. 8 188
P W Martin 2000 Metrologia 37 185