Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Preparation of Flower-Like Al2O3 Nanostructures by Hydrothermal Synthesis and Study of Thermal Properties of BN/Al2O3 Composites

수열합성법을 이용한 Flower-Like 형상의 Al2O3 Nanostructure 제조 및 BN/Al2O3 복합체의 방열 특성 연구

  • Noh Geon Song (Department of Materials Science and Engineering, Korea National University of Transportation) ;
  • Yong Jin Jeong (Department of Materials Science and Engineering, Korea National University of Transportation)
  • 송노건 (한국교통대학교 신소재공학전공) ;
  • 정용진 (한국교통대학교 신소재공학전공)
  • Received : 2023.08.23
  • Accepted : 2023.09.07
  • Published : 2023.11.01
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Abstract

Recently, with the development of the smart device market, the integration of high-functional devices has increased the heat density, causing overload of the device, and resulting in various problems such as shortened lifespan, performance degradation, and failure. Therefore, research on heat dissipation materials is being actively conducted to realize next-generation electronic products. The heat dissipation material is characterized in that it is easy to dissipate heat due to its high thermal conductivity and minimizes leakage current flowing through the heat dissipation material due to its low electrical conductivity. In this study, flower-shaped Al2O3 and BN composites were engineered with a simple hydrothermal synthesis approach, and their thermal conductivity characteristics were compared and evaluated for each synthesis condition for the application to a heat dissipation material. Spherical BN and flower-shaped Al2O3 were easily obtained, and SEM/EDS analyses confirmed the uniform presence of BN between the Al2O3, and it can be expected that these shapes can affect the thermal conductivity.

Keywords

Acknowledgement

This work was supported by Korea Basic Science Institute (National Research Facilities and Equipment Center) grant funded by the Ministry of Education (Grant No.2019R1A6C1010047 and 2021R1A6C103A367). This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIT) (2022R1F1A1064314). This was supported by Korea National University of Transportation in 2023.

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