非定常熱源인 펄즈狀加熱法에 의한 强誘電體 Ceramic의 熱物性 測定 = Measurement of thermophysical properties of Ferroelectricity Ceramics by Unsteady heat source Pulse heating method

다국어 초록 (Multilingual Abstract)

The square wave pulse heating method of measuring thermophysical properties has been developed. The cylindrical of a specimen in the ferroelectricity ceramincs are heated square wave for a few second by a film heater which is placed between the plates. The resulting temperature history of the opposite surface is attached to make it hove high thermal and conductivites, is measured by pressing seperated C-A thermocouple wires against the surface. From a compassion between the measured and theoretical temperature histories, the thermal diffusivity, the specific heat and t conductivity of the specimen can be deformined automatically in a few minuted by a computer. The values of thermophysical properties were measured as a function of temperature ranging from room temperature to 1000℃
Thus, the effects of dielectricity upon themophysical properties were analyzied in detail.