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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

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A general approach to composites containing nonmetallic fillers and liquid gallium

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dc.contributor.author Wang, Chunhui ko
dc.contributor.author Gong, Yan ko
dc.contributor.author Cunning, Benjamin, V ko
dc.contributor.author Lee, Seunghwan ko
dc.contributor.author Le, Quan ko
dc.contributor.author Joshi, Shalik R. ko
dc.contributor.author Buyukcakir, Onur ko
dc.contributor.author Zhang, Hanyang ko
dc.contributor.author Seong, Won Kyung ko
dc.contributor.author Huang, Ming ko
dc.contributor.author Wang, Meihui ko
dc.contributor.author Lee, Jaeseon ko
dc.contributor.author Kim, Gun-Ho ko
dc.contributor.author Ruoff, Rodney S. ko
dc.date.available 2021-09-09T08:41:05Z -
dc.date.created 2021-09-06 ko
dc.date.issued 2021-01 ko
dc.identifier.citation SCIENCE ADVANCES, v.7, no.1, pp.eabe3767 ko
dc.identifier.issn 2375-2548 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/53876 -
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 https://www.science.org/doi/10.1126/sciadv.abe3767 ko
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