Proceedings of the
World Congress on Micro and Nano Manufacturing (WCMNM 2022 )
19–22 September 2022, Lueven, Belgium
doi:10.3850/978-981-18-5180-3_RP57-0003

Manufacturing and Characterization of Acicular Fe-Ni Micro-Textured Heat-Transferring Sheets

Tatsuhiko Aizawa1, Hiroki Nakata2 and Takeshi Nasu2

1Surface Engieering Design Laboratory, SIT, Japan

2Ebina Denka-Kogyo, Co., Ltd., Japan

ABSTRACT

Enhancement of convection and radiation heat transfer processes was essential to prevent the semi-conductor chips and the power transistors from thermal damages and deterioration. A micro-textured copper sheet with Fe – Ni acicular unit cells was fabricated by the wet plating process. The heat transfer experiments under the forced air cooling were utilized to investigate the thermal transients on the copper sheets with and without micro-textures by using the thermography. The air flow velocity was varied to describe the cooling capacity of micro-textured copper sheet. The unit cell size and aspect ratio of Fe – Ni acicular micro-textures were varied to investigate their effect on the radiation and convection heat transfer processes.

Keywords: Micro-textured copper sheet, Fe – Ni acicular unit cells, Heat transfer, Convection, Air forced cooling, Radiation, Thermography, Thermal transients



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