Thermal conduction in nanoporous copper inverse opal films

Michael T. Barako, Jeffrey M. Weisse, Shilpi Roy, Takashi Kodama, Thomas J. Dusseault, Munekazu Motoyama, Mehdi Asheghi, Fritz B. Prinz, Xiaolin Zheng, Kenneth E. Goodson

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

15 被引用数 (Scopus)

抄録

Copper inverse opal films offer an attractive combination of conduction and convection transport properties that yield a low total thermal resistance for microfluidic heat exchanger applications. In this work, we present an integrated synthesis and characterization strategy to fabricate nanoporous copper inverse opal films and to measure the effective thermal conductivity. We synthesize inverse opal films with sub-micron pore diameters using a sacrificial packed multilayer nanosphere bed to mold the geometry of an electrodeposited copper film. We characterize the effective thermal conductivity using the 3ω method, where the nanoporous copper film is deposited directly above a microfabricated and electrically-passivated 3ω device. The effective thermal conductivity is measured to be as large as 170 W m1K1. This experimental data is compared to finite element simulations as well as common conduction models for heterogeneous media, including Maxwell's model and differential effective medium theory. This provides insight into the design of nanoengineered surfaces and two-phase vapor-venting microfluidic heat exchangers for ultrahigh heat flux cooling.

本文言語英語
ホスト出版物のタイトルThermomechanical Phenomena in Electronic Systems -Proceedings of the Intersociety Conference
出版社Institute of Electrical and Electronics Engineers Inc.
ページ736-743
ページ数8
ISBN(電子版)9781479952670
DOI
出版ステータス出版済み - 9月 4 2014
外部発表はい
イベント14th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2014 - Orlando, 米国
継続期間: 5月 27 20145月 30 2014

出版物シリーズ

名前Thermomechanical Phenomena in Electronic Systems -Proceedings of the Intersociety Conference

その他

その他14th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2014
国/地域米国
CityOrlando
Period5/27/145/30/14

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学
  • 材料化学

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