Differential thermal Analysis as Applied to Thermal Endurance of Dielectrics

Research was conducted to develop a rapid and inexpensive means for the temperature classification of dielectrics. An oxygen injection differential thermal analysis method was developed which provided for the obtaining of life-temperature plots in a much shorter time than existing thermal endurance methods. The new method is applicable to materials whose deterioration at elevated temperatures is caused by a reaction with atmospheric oxygen. Results of the new method correlate well with those of existing thermal endurance method for materials investigated.