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Investigation on microstructure and thermal properties of in-situ synthesized Cu–ZrO2 nanocomposites

  • Marwa Elmahdy , Gamal Abouelmagd and Asaad A. Mazen
Published/Copyright: November 25, 2017
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 108 Issue 12

Abstract

Cu–ZrO2 nanocomposites were prepared by an in-situ reactive synthesis of copper nitrate Cu(NO3)2 and zirconium oxychloride ZrOCl2. Zirconia (ZrO2) was added by 2.5, 5 and 10 wt.% to the Cu matrix to assess its effect on thermal conductivity and thermal expansion behavior. The results showed that ZrO2 nanoparticles (30–50 nm) were homogeneously distributed in the copper matrix. The measured thermal conductivity for the Cu–ZrO2 nanocomposites decreased from 372.8 to 94.4 W m−1 K−1 with increasing ZrO2 content from 0 to 10 wt.%. Cu-10 wt.% ZrO2 nanocomposite yields a low thermal conductivity of 94.4 W · m−1 K−1 along with a low coefficient of thermal expansion, 11.47 × 10−6 K−1.

Keywords: Cu–ZrO2 nanocomposite; In-situ chemical synthesis; Thermal conductivity; Coefficient of thermal expansion
*Correspondence address, Dr. Marwa Elmahdy, Mechanical Department, Higher Technological Institute, Tenth of Ramadan 228, Egypt, Tel.: +201006244715, Fax: +20015371351, E-mail:

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Received: 2017-06-04
Accepted: 2017-08-08
Published Online: 2017-11-25
Published in Print: 2017-12-08

© 2017, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111576
Keywords for this article
Cu–ZrO2 nanocomposite; In-situ chemical synthesis; Thermal conductivity; Coefficient of thermal expansion

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. First principles, thermal stability and thermodynamic assessment of the binary Ni–W system
  5. Experimental evaluation of forming limit diagram and mechanical properties of nano/ultra-fine grained aluminum strips fabricated by accumulative roll bonding
  6. FSW of bimodal reinforced Al-based composites produced via spark plasma sintering
  7. Modelling analysis and experiments of polycrystalline silicon directional solidification in an annular heating field
  8. Effect of flow, heat transfer and magnetic energy on the grain refinement of 7A04 alloy under electromagnetic pulse
  9. A study on effects of a new two-step strain induced melt activation process on characteristics of Al 7075 alloy
  10. Synthesis and characterization of mechanically alloyed cerium oxide reinforced Al-4.5Mg alloy composite
  11. Densification rate and interfacial adhesion of bilayer cemented tungsten carbide and steel
  12. Short Communications
  13. Cavitation erosion of 17-4 PH stainless steels following sub-zero treatment
  14. Investigation on microstructure and thermal properties of in-situ synthesized Cu–ZrO2 nanocomposites
  15. DGM News
  16. DGM News
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