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Kim, Gun-Ho
SoftHeat Group
Research Interests
  • Heat transfer mechanism in soft materials (e.g., plastics, animal tissues)
  • Development of thermally conductive plastics and high performance polymeric thermoelectric heat engine
  • Development of biomedical devices that use responses of animals to environmental temperature changes


A general approach to composites containing nonmetallic fillers and liquid gallium

DC Field Value Language Wang, Chunhui ko Gong, Yan ko Cunning, Benjamin, V ko Lee, Seunghwan ko Le, Quan ko Joshi, Shalik R. ko Buyukcakir, Onur ko Zhang, Hanyang ko Seong, Won Kyung ko Huang, Ming ko Wang, Meihui ko Lee, Jaeseon ko Kim, Gun-Ho ko Ruoff, Rodney S. ko 2021-09-09T08:41:05Z - 2021-09-06 ko 2021-01 ko
dc.identifier.citation SCIENCE ADVANCES, v.7, no.1, pp.eabe3767 ko
dc.identifier.issn 2375-2548 ko
dc.identifier.uri -
dc.description.abstract We report a versatile method to make liquid metal composites by vigorously mixing gallium (Ga) with non-metallic particles of graphene oxide (G-O), graphite, diamond, and silicon carbide that display either paste or putty-like behavior depending on the volume fraction. Unlike Ga, the putty-like mixtures can be kneaded and rolled on any surface without leaving residue. By changing temperature, these materials can be stiffened, softened, and, for the G-O-containing composite, even made porous. The gallium putty (GalP) containing reduced G-O (rG-O) has excellent electromagnetic interference shielding effectiveness. GalP with diamond filler has excellent thermal conductivity and heat transfer superior to a commercial liquid metal-based thermal paste. Composites can also be formed from eutectic alloys of Ga including Ga-In (EGaIn), Ga-Sn (EGaSn), and Ga-In-Sn (EGaInSn or Galinstan). The versatility of our approach allows a variety of fillers to be incorporated in liquid metals, potentially allowing filler-specific "fit for purpose" materials. ko
dc.language 영어 ko
dc.publisher American Association for the Advancement of Science ko
dc.title A general approach to composites containing nonmetallic fillers and liquid gallium ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85098702853 ko
dc.identifier.wosid 000605159200039 ko
dc.type.rims ART ko
dc.identifier.doi 10.1126/sciadv.abe3767 ko
dc.identifier.url ko
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