Thermal analysis

Abstract

This review covers the major trends in thermal analysis from the previous review (254) to October 1977. During this period, several major meetings have been devoted to thermal analysis,

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

“…Subsequent measurements using high-quality 5.0-MHz crystals, the second prototype instrument, and computer data acquisition under programmed temperature conditions showed the variation between successive heating cycles to be on the same order as the noise in a single background or about 1 to 2 times the digitization error for the frequency. At 1-s acquisition times, the error was [2][3][4][5] Hz while at 0.1-s acquisition times the error was 10-20 Hz. The background data were subjected to least-squares curve fitting of first through fifth orders.…”

“…Thermogravimetry (TG) has developed into an important analytical technique since its introduction by Honda in 1915 (1). Recent applications have been extensively reviewed in this journal (2,3) and have included studies of the decomposition of polymers (4,5), flame retardancy (6), oil stability (7,8), and the volatility of compounds in addition to more classical studies of minerals and precipitates (2,3). A large portion of the use of TG has been in the routine screening of materials by industry, and much of this has been documented primarily in the technical applications literature.…”

“…Isothermal TG studies at elevated temperature were made possible only with careful temperature control. dF = AX(T -Tr) + A2(T -Tr)2 + A3(T -Tr)3 (2) dF = change in frequency in ppm from value at reference temperature…”

Inorganic and geological materials

“…Thermal Methods. The Fundamental review by Murphy (153) includes a glossary of terms in thermal analysis wherein a neophyte can learn the meaning of terms such as thermodilatometry, thermosonimetry, and thermoacoustimetry. Reviews noted since that time include general discussions by Bark (14) and Wendlandt (246); dynamic or catalytic thermal analysis by Greenhow (73), and Barrall and Gritter (17); discussions of simultaneous techniques by Paulik (169); and a discussion of injection enthalpimetry by Akstinat (4).…”

Thermal analysis

“…(125) Joy, D. C.; Maher, D. M. Scanning Electron Microsc. 1977, 10, This review covers trends in thermal analysis from the previous review (139) to October 1979. The Nomenclature Committee of ICTA has continued to put forth its recommendations (119), which essentially remain as reported in the last review.…”