Thermogravimetric apparatus temperature calibration using melting point standards

Some Basics En Route to Isoconversional Methodology

“…The temperature of the mass jump that occurs during the ferromagnetic to paramagnetic transition is then identified with the Curie temperature of the material. Another option is to use a dropping weight (platinum coil) connected to the balance beam by a fusible link, which is a thin wire made of melting point metal standard [44].…”

Temperature calibration procedure for thin film substrates for thermo-ellipsometric analysis using melting point standards

“…For TG-apparatuses, the state-of-the-art technique involves the placement of a magnet above or under the apparatus, and recording the apparent mass change in a ferromagnetic material when it loses its magnetic properties, as it passes through the Curie temperature [9]. An alternative method involves the use of a dropping weight that hangs from a fusible link made from a melting point temperature standard [13]. Other options include recording the decomposition point of a material [14] or the difference between sample and set temperature that occurs as a result of sample self-heating or cooling (this technique is named calculated DTA and is the technique behind Netzsch's c-DTA 1 ).…”

Modern Thermogravimetry

“…However, for those systems using larger furnaces external to the furnace tube, the positioning of the permanent magnet becomes much more awkward. An alternate approach, which uses a fusible link of a melting-point standard and seems to show some promise for temperature calibration of those instruments using external furnaces, has recently been published (8,9).…”