Thermal Contact Resistance Measurement Between Alloy Coated Surfaces Versus Temperature and Pressure at the Interface

1995 ◽  
Author(s):  
F. Roberto Torrisi ◽  
Roberto Pagliuso
Keyword(s):  
Contact Resistance ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Resistance Measurement ◽  
Temperature And Pressure ◽  
Coated Surfaces

scholarly journals Effects of pressure and temperature on thermal contact resistance between different materials

2015 ◽  
Vol 19 (4) ◽  
pp. 1369-1372 ◽  
Author(s):  
Zhe Zhao ◽  
Hai-Ming Huang ◽  
Qing Wang ◽  
Song Ji
Keyword(s):  
Thermal Conductivity ◽  
Contact Resistance ◽  
Thermal Contact Resistance ◽  
Experimental Approach ◽  
Phenolic Resin ◽  
Thermal Conductivity Coefficient ◽  
Thermal Contact ◽  
Carbon Composites ◽  
Interfacial Temperature ◽  
Temperature And Pressure

To explore whether pressure and temperature can affect thermal contact resistance, we have proposed a new experimental approach for measurement of the thermal contact resistance. Taking the thermal contact resistance between phenolic resin and carbon-carbon composites, cuprum, and aluminum as the examples, the influence of the thermal contact resistance between specimens under pressure is tested by experiment. Two groups of experiments are performed and then an analysis on influencing factors of the thermal contact resistance is presented in this paper. The experimental results reveal that the thermal contact resistance depends not only on the thermal conductivity coefficient of materials, but on the interfacial temperature and pressure. Furthermore, the thermal contact resistance between cuprum and aluminum is more sensitive to pressure and temperature than that between phenolic resin and carbon-carbon composites.

scholarly journals Dynamic Thermal Contact Resistance Measurement Method Using Lock-in Thermography

Proceedings ◽  
2019 ◽  
Vol 27 (1) ◽  
pp. 42 ◽  
Author(s):  
Ishizaki ◽  
Igami ◽  
Ueno ◽  
Nagano
Keyword(s):  
Contact Resistance ◽  
Measurement Method ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Side Surface ◽  
Resistance Measurement ◽  
Phase Lag ◽  
Infrared Microscope ◽  
Measurement Principle ◽  
Lock In

This paper proposes a new thermal contact resistance measurement method using lock-in thermography. By the lock-in thermography with an infrared microscope, the dynamic temperature behavior across the contact interface was visualized in the sample side surface. Meanwhile, a new thermal contact resistance measurement principle was constructed by the superimposition of the temperature wave from virtual heat sources in consideration of the thermal contact resistance at the interface. Consequently, the thermal contact resistance was obtained as a fitting parameter by fitting the theoretical curve to the measured amplitude and phase lag. The validity of the principle was shown.

scholarly journals Measurement of Line Distribution of Thermal Contact Resistance Using Microscopic Lock-In Thermography

2021 ◽  
Vol 8 (1) ◽  
pp. 18
Author(s):  
Takuya Ishizaki ◽  
Ai Ueno ◽  
Hosei Nagano
Keyword(s):  
Contact Resistance ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Resistance Measurement ◽  
Phase Lag ◽  
Contact Interface ◽  
Geometrical Condition ◽  
Infrared Microscope ◽  
The One ◽  
Lock In

This paper proposes a new thermal contact resistance measurement method using lock-in thermography. Using the lock-in thermography with an infrared microscope, the local temperature behavior in the frequency domain across the contact interface was visualized in microscale. Additionally, a new thermal contact resistance measurement principle was constructed considering the superimposition of the reflected and transmitted temperature wave at the boundary and taking into account the intensity distribution of the heating laser as the gaussian distribution, and the specific geometrical condition of the laminated plate sample. As a result of the experiments, the one-dimensional distribution of the thermal contact resistance was obtained along the contact interface from the analysis of the phase lag.

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