“…New thermobalances that have been described include: a calorimetric thermobalance created by combining a thermo-balance, conduction type calorimeter, and an IR image furnace (304,182); a high-temperature unit permitting operation at temperatures up to 2500 °C in inert or reducing atmosphere and 1800 °C in oxidizing media (253); and a piezoelectric crystal thermobalance for studying microgram samples at heating rates of up to 100 °C min"1 (139). The unit should to be usable to temperatures of 1000 °C with a Li niobate crystal.…”