Piezoelectric crystal thermogravimetric analyzer for temperature-programmed analysis of deposited films

Abstract

A piezoelectric crystal thermogravimetric analyzer Is described which allows analysis of microgram samples at rates up to 100 °C/min. Samples are deposited as films from solution In a volatile solvent. The variation in frequency as a function of crystal temperature Is measured and subtracted

Thermal analysis

“…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.…”

Piezoelectric chemical sensors (IUPAC Technical Report)

“…Among the many piezoelectric materials, α-quartz is most commonly studied and used as piezoelectric oscillator, because desired features can be achieved through various cuts of its native crystals [2,3,[27][28][29]:…”