Fabrication of silicon-based porous nanocomposite films by focused infrared light sintering

Jiwang Yan, Kouga Okada

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A beam of focused infrared light was used to sinter a mixture of silicon powders, copper nanoparticles, and carbon nanotubes for fabricating porous nanocomposite films. Copper was preferentially heated by the infrared light, while silicon was indirectly heated through heat conduction because of its transparency to infrared light. Micro wire formation and interfacial element diffusion were detected on the sintered film surfaces. Networks of copper binder and carbon nanotubes, which provide high binding strength and electrical conductivity, were successfully generated. The sintered depth, porosity rate, and silicon crystallinity were controllable by varying the scan speed of the infrared light.

Original languageEnglish
JournalCIRP Annals - Manufacturing Technology
DOIs
Publication statusAccepted/In press - 2016

Fingerprint

Nanocomposite films
Sintering
Infrared radiation
Fabrication
Silicon
Carbon nanotubes
Copper
Copper powder
Heat conduction
Transparency
Binders
Porosity
Wire
Nanoparticles

Keywords

  • Composite
  • Silicon
  • Sintering

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

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AB - A beam of focused infrared light was used to sinter a mixture of silicon powders, copper nanoparticles, and carbon nanotubes for fabricating porous nanocomposite films. Copper was preferentially heated by the infrared light, while silicon was indirectly heated through heat conduction because of its transparency to infrared light. Micro wire formation and interfacial element diffusion were detected on the sintered film surfaces. Networks of copper binder and carbon nanotubes, which provide high binding strength and electrical conductivity, were successfully generated. The sintered depth, porosity rate, and silicon crystallinity were controllable by varying the scan speed of the infrared light.

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KW - Sintering

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