THERMAL SENSING ELEMENT, METHOD OF MANUFACTURING THE THERMAL SENSING ELEMENT, AND METHOD OF ADJUSTING PRIMARY-PHASE TRANSITION TEMPERATURE

摘要

PROBLEM TO BE SOLVED: To provide a method of effectively utilizing a primary-phase transition substance.

SOLUTION: The substance having primary-phase transition property changing its volume on the basis of a temperature, has linear expansion coefficients that significantly differ between the temperatures prior to and after primary-phase transition. By utilizing this property, the primary-phase transition substance can be used in thermal switches or thermistors. The linear expansion coefficient of perovskite manganese nitride crystal as the primary-phase transition substance is measured to be used as the thermal sensing element.

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