Method of measuring thermal conductivity of coating layer and determining method of heat dissipation coating layer using same

• Main Author: SONG YOUNG SIK
• Format: Patent
• Language: English; Korean
• Published: 08.07.2021
• Subjects: CALCULATING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPUTING; COUNTING; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC DIGITAL DATA PROCESSING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; METALLURGY; PHYSICS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TESTING

The present invention relates to a method for measuring thermal conductivity, and more particularly, to a method for measuring the thermal conductivity of a coating layer, capable of accurately measuring the thermal conductivity of a coated thin film which has been difficult to measure, and a method for determining a heat dissipation coating layer using the same. The method for measuring the thermal conductivity of a coating layer of the present invention comprises the steps of measuring the thermal conductivity of a bulk material having opposite surfaces; forming a coating layer on any one surface of the bulk material; measuring the thermal diffusivity, specific heat and density of the bulk material on which the coating layer is formed; measuring the thermal conductivity of the bulk material on which the coating layer is formed through the measured thermal diffusivity, specific heat and density values; and determining a thermal conductivity value of the coating layer by subtracting a thermal conductivity measurement value of the same uncoated bulk material from the thermal conductivity measurement value of the bulk material on which the coating layer is formed. 본 발명은 열전도도 측정방법에 관한 것으로, 보다 구체적으로는 기존에는 측정이 어려웠던 코팅된 박막의 열전도도를 정확하게 측정할 수 있는 코팅층의 열전도도 측정방법 및 이를 이용한 열방출코팅층 결정방법에 관한 것이다.