Supersonically Sprayed Copper-Nickel Microparticles as Flexible and Printable Thin-Film High-Temperature Heaters

Jong Gun Lee, Do Yeon Kim, Tae Gun Kim, Jong Hyuk Lee, Salem S. Al-Deyab, Hyun Woo Lee, Jang Soo Kim, Dae Ho Yang, Alexander Yarin, Suk Goo Yoon

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Cu and Ni nanoparticles are sprayed at supersonic velocities onto stiff glass, ceramic, and marble surfaces, as well as onto flexible polymer substrates of complex shapes. Joule heating occurs when a voltage is applied to the sprayed Cu-Ni thin films, enabling their use as thin-film heaters. The Cu-Ni composition is varied to control the electrical and the thermal properties of the films, which affects the total amount of power used for the heating. At a high Cu content, the temperature reaches as high as 1000 °C, which significantly broadens the range of potential applications of such film heaters. The thermal stability of the film heaters is confirmed by cyclic testing, which shows repeatable rapid undulations in the temperature range of 600 °C. The Cu-Ni film heaters can be printed on any type of substrates including mirrors, glasses, and flexible polymers, and the method of film fabrication is rapid and scalable. The surface temperature of the heater is measured experimentally and matches well with the theoretical predictions. The Cu-Ni film heaters find applications in vehicle defrosters, smart heat-retaining windows, domestic appliances, etc., and industrial heating and defrosting of complex surfaces.

Original languageEnglish
JournalAdvanced Materials Interfaces
DOIs
Publication statusAccepted/In press - 2017

Keywords

  • Conducting films
  • Convective and radiative heat transfer
  • Copper-nickel heater
  • Supersonic spray coating

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Lee, J. G., Kim, D. Y., Kim, T. G., Lee, J. H., Al-Deyab, S. S., Lee, H. W., Kim, J. S., Yang, D. H., Yarin, A., & Yoon, S. G. (Accepted/In press). Supersonically Sprayed Copper-Nickel Microparticles as Flexible and Printable Thin-Film High-Temperature Heaters. Advanced Materials Interfaces. https://doi.org/10.1002/admi.201700075