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- Zehri, Abdelhafid,1989Chalmers tekniska högskola,Chalmers University of Technology (författare)
Exploring Graphene Coated Copper Nanoparticles as a multifunctional Nanofiller for Micro-Scaled Copper Paste
- Artikel/kapitelEngelska2021
Förlag, utgivningsår, omfång ...
- 2021
Nummerbeteckningar
- LIBRIS-ID:oai:research.chalmers.se:508c4411-46e1-4dd9-82ce-0aa45a2032c3
- https://research.chalmers.se/publication/529075URI
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- Språk:engelska
- Sammanfattning på:engelska
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- The current development of the electronics system requires capabilities beyond conventional heat transfer approaches. New solutions based on advanced materials are being developed to tackle the current challenges in the development of electronics systems and the nanoscale 2D materials such as graphene are at the centre of the effort to exploit the intrinsic properties of carbon nanomaterials. In this work, we introduce a new concept of graphene-coated copper nanoparticles (G-CuNPs) and explore their multifunctional potential applications in metallic based paste used in electronics. The nanoscale powder was found to present a core/shell structure with the copper particle at its core and a disordered multilayer graphene structure continuously coating its surface. The composition of the particles was analysed, and the presence of the coating was found to provide oxidation protection for the metallic core. Thermogravimetric analysis (TGA) showed an additional role of the G-CuNPs with a reduction effect without the use of an additional reducing agent. Furthermore, due to the combined effect of the size of the particles and the oxidation-free metallic core, Differential Scanning Calorimetry (DSC) analysis revealed a melting depression at temperatures as low as 155 °C. Finally, the mechanical properties of the nanocoating were investigated and the results showed an enhanced ductility at the surface of the particles due to the presence of the multi-layered graphene structure, which might be exploited for powder flow and lubrication effect.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Kemi Oorganisk kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Inorganic Chemistry hsv//eng
- NATURVETENSKAP Kemi Materialkemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Materials Chemistry hsv//eng
- NATURVETENSKAP Kemi Annan kemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Other Chemistry Topics hsv//eng
- Disordered multilayer graphene
- Graphene coating
- Multifunctional sintering aid
- Copper nanoparticles
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Nilsson, Torbjörn,1962Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tornilss (författare)
- Fu, Yifeng,1984Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)yifeng (författare)
- Liu, Johan,1960Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jliu (författare)
- Chalmers tekniska högskola (creator_code:org_t)
Sammanhörande titlar
- Ingår i:2021 23rd European Microelectronics and Packaging Conference and Exhibition, EMPC 2021
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