Thermal transport in composites of self-assembled nickel nanoparticles embedded in yttria stabilized zirconia

Nitin C. Shukla, Hao Hsiang Liao, Jeremiah T. Abiade, Mitsuhiro Murayama, Dhananjay Kumar, Scott T. Huxtable

研究成果: ジャーナルへの寄稿学術誌査読

5 被引用数 (Scopus)

抄録

We investigate the effect of nickel nanoparticle size on thermal transport in multilayer nanocomposites consisting of alternating layers of nickel nanoparticles and yttria stabilized zirconia (YSZ) spacer layers that are grown with pulsed laser deposition. Using time-domain thermoreflectance, we measure thermal conductivities of k=1.8, 2.4, 2.3, and 3.0 W m-1 K-1 for nanocomposites with nickel nanoparticle diameters of 7, 21, 24, and 38 nm, respectively, and k=2.5 W m-1 K-1 for a single 80 nm thick layer of YSZ. We use an effective medium theory to estimate the lower limits for interface thermal conductance G between the nickel nanoparticles and the YSZ matrix (G>170 MW m-2 K-1), and nickel nanoparticle thermal conductivity.

本文言語英語
論文番号151913
ジャーナルApplied Physics Letters
94
15
DOI
出版ステータス出版済み - 2009
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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