Measurements of Aluminum-Annealed Pyrolytic Graphite Composite Baseplates with Improved Thermal Conductivity

Authors

  • yanfei bian The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang -050081, China
  • SHI Jian-zhou The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang -050081, China
  • XIE Ming-jun The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang -050081, China
  • CAI Meng The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang -050081, China

DOI:

https://doi.org/10.37255/jme.v16i2pp042-047

Keywords:

Thermal management, Annealed pyrolytic graphite, Heat sink, Thermal conductivity, Composite baseplates

Abstract

Annealed pyrolytic graphite (APG) is a material with thermal conductivity of about 1500 W/(m·K). This property may enable the usage of APG’s thermal potential to develop highly thermally conductive composites for devices requiring effective thermal management. In this paper, APG has been encapsulated in aluminum by brazing, and the thermal properties of Al-APG composite baseplates were measured. The results show that the thermal conductivity of the Al-APG composite baseplates is about 620 W/(m·K), which is four times higher than the pure aluminum plate (152 W/(m·K)).

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

Nhat Minh Nguyen, Eric Monier-Vinard, et al. (2017), Practical analytical steady-state temperature solution for annealed pyrolytic graphite heat spreader, International Journal of Numerical Methods for Heat & Fluid Flow, vol.27, no.1, pp:174-188.

Wei Fan, Eelco Galestien, et al. (2016), Doubling the Output of Automotive LED Headlight with Efficient Cooling Using Thermal Pyrolytic Graphite, 15th IEEE ITHERM Conference, 180-184.

Zechao Tao, Quangui Guo, et al. (2011), The wettability and interface thermal resistance of copper/graphite system with an addition of chromium, Materials Chemistry and Physics, 128, 228-232.

Z.B.Chen, H.Bian, et al. (2018), Surface modification on wetting and vacuum brazing behaviour of graphite using Ag/Cu filler metal, Surface & Coatings Technology, 348, 104-110.

Jinliang Song, Quangui Guo, et al. (2011), Mo2C intermediate layers for graphite-Cu system using the molten salt method, Fusion Engineering and Design, 86, 2965-2970.

Zhenhua Yi, Liping Ran, et al. (2019), Differences in microstructure and properties of C/C composites brazed with Ag-Cu-Ti and Ni-Cr-P-Ti pasty brazing filler, Vacuum, 168, 108804.

Bin Jiang, Huatao Wang, et al. (2016), Copper-graphite-copper sandwich: superior heat spreader with excellent heat-dissipation ability and good weldability, RSC Advances,6, 25128-25136.

Yangwu Mao, Sheng Wang, et al. (2016), Brazing of graphite to Cu with Cu50TiH2+C composite filler, J Mater Sci, 51, 1671-1679.

Downloads

Published

2021-06-01

How to Cite

[1]
yanfei bian, SHI Jian-zhou, XIE Ming-jun, and CAI Meng, “Measurements of Aluminum-Annealed Pyrolytic Graphite Composite Baseplates with Improved Thermal Conductivity”, JME, vol. 16, no. 2, pp. 042–047, Jun. 2021.

Issue

Vol. 16 No. 2 (2021): June 2021

Section

Articles
Crossref
Scopus
Google Scholar
Europe PMC