An apparatus for direct and differential thermal analysis at temperatures up to 1500°C /

A recording apparatus suitable for thermal and differential thermal analysis was developed. It can be used to obtain data for phase diagram investigations on small samples of rare metals and their alloys at temperatures up to 1500 C. The thermal analysis apparatus consists of a platinum wound resistance furnace with protective atmos phere provisions and a Pt/Pt 13% Rh thermo couple as sensor which feeds a one mV strip chart recorder. A bucking potentiometer used in series with the thermocouple permits a temperature reso lution of better than 0.5 C. For differential thermal analysis, an additional 100 microvolt strip chart recorder is used. The heating or cooling rate can be varied between 0.5 C/min and approximately 15 C/minute. The thermal analysis apparatus was calibrated at several fixed points and has an overall accuracy of =1.5 C. (Author)."July 1963."Includes bibliograpic references (page 26).A recording apparatus suitable for thermal and differential thermal analysis was developed. It can be used to obtain data for phase diagram investigations on small samples of rare metals and their alloys at temperatures up to 1500 C. The thermal analysis apparatus consists of a platinum wound resistance furnace with protective atmos phere provisions and a Pt/Pt 13% Rh thermo couple as sensor which feeds a one mV strip chart recorder. A bucking potentiometer used in series with the thermocouple permits a temperature reso lution of better than 0.5 C. For differential thermal analysis, an additional 100 microvolt strip chart recorder is used. The heating or cooling rate can be varied between 0.5 C/min and approximately 15 C/minute. The thermal analysis apparatus was calibrated at several fixed points and has an overall accuracy of =1.5 C. (Author).Mode of access: Internet