AN APPARATUS FOR DIRECT AND DIFFERENTIAL THERMAL ANALYSIS AT TEMPERATURES UP TO 1500 DEGREES C.
Abstract
A recording apparatus suitable for thermal and differential thermal analysis was developed. It can be used to obtain data for phase diagram in vestigations 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1963
- Accession Number
- AD0418225
Entities
People
- Donald J. Evans
- Karl Strnat
Organizations
- Air Force Research Laboratory