Keeping gallium metal to liquid state under the freezing point by using silica nanoparticles

Lingfei Cao, Hyunseo Park, Gjergj Dodbiba, Kenji Ono, Chiharu Tokoro, Toyohisa Fujita

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Gallium metal under the freezing point was observed to maintain its liquid state by dispersing silica nanoparticles of a given particle size and concentration. Though the freezing point of pure gallium is 302.9 K, the liquid gallium maintained its supercooling state at 276-277 K for more than 400 days by dispersing 1.0 wt. of silica nanoparticles (10 nm in size). Extended x-ray absorption fine structure analysis shows that the supercooled gallium liquid has a β-Ga-like feature, and the nearest neighboring atom distance is 0.1 larger than that of pure liquid gallium. This method opens the way to use liquid gallium as a promising fluid carrier in energy conversion devices.

Original languageEnglish
Article number143120
JournalApplied Physics Letters
Volume99
Issue number14
DOIs
Publication statusPublished - 2011 Oct 3

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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