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Study on Improvement of Heat Dissipation Characteristics of TIM Material Using Radiant Energy

복사에너지를 이용한 TIM소재의 방열 특성 향상을 위한 연구

  • Hwang, Myungwon (Departments of Materials Science and Engineering, Pusan National University) ;
  • Kim, Dohyung (Departments of Materials Science and Engineering, Pusan National University) ;
  • Jung, Uoo-Chang (Korea Institute of Industrial Technology, Dongnam Regional Division) ;
  • Chung, Wonsub (Departments of Materials Science and Engineering, Pusan National University)
  • 황명원 (부산대학교 재료공학과) ;
  • 김도형 (부산대학교 재료공학과) ;
  • 정우창 (한국생산기술연구소 동남지역본부) ;
  • 정원섭 (부산대학교 재료공학과)
  • Received : 2019.01.21
  • Accepted : 2019.03.28
  • Published : 2019.04.30

Abstract

The aim of this study is to quantitatively demonstrate the possibility of heat transfer by thermal radiation by comparing heat transfer by conventional heat transfer and radiation by radiation. 1) The heat transfer was measured by using filler of TIM material with low thermal conductivity (CuS). As a result, heat transfer was easier than ceramic with high thermal conductivity ($Al_2O_3$ and $Si_3N_4$). 2) The reason for this is thought to be that the infrared wave due to radiation of the air diaphragm has moved easily. 3) From the above results, the heat dissipation of the TIM material indicates the possibility of heat transfer by thermal radiation.

Keywords

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Fig. 1. Schematics diagram of the apparatus for measuring the temperature of sample.

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Fig 2. the high heat-dissipating ceramic composite powder; (A) SEM analysis and (b) EDAX analysis [3].

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Fig 3. The emissivity of the filler used in the experiment

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Fig 4. Change of temperature with time

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Fig. 5. Heat transfer mechanism inside TIM by thermal radiation

Table 1. Composition of samples with various fillers

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Table 2. Temperature(℃) measured at thermocouple

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Table 3. Thermal conductivity of each materials

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Acknowledgement

Supported by : 부산대학교

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