Abstract
NTC thermistor is used as temperature sensor which would be hold in severe temperature environment. We must needto know not only electrical properties but also mechanical properties in the sever conditions. In this paper, we study mechanical properties and resistance to thermal shock of poly-crystal semiconductor. After doing tensile tests for 4 types of materials with different compounding ratio, we clarified the difference of mechanical properties for these material. Choosing a type of thermistor specimens, we have done thermal shock test and evaluated the Young's Modulus and flexural strength of NTC thermistor after thermal shock tests from the view point of composite materials.
