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Unusual tensile beh...
Unusual tensile behaviour of fibre-reinforced indium matrix composite and its in-situ TEM straining observation
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- Luo, Xin, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Peng, J. C. (författare)
- Shanghai University
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- Zandén, Carl, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Yang, Y. P. (författare)
- Shanghai University
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- Mu, Wei, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Edwards, Michael, 1986 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ye, L. (författare)
- SHT Smart High-Tech AB
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- Liu, Johan, 1960 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
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Ingår i: Acta Materialia. - : Elsevier BV. - 1359-6454. ; 104, s. 109-118
- Relaterad länk:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Indium-based thermal interface materials are superior in thermal management applications of electronic packaging compared to their polymer-based counterparts. However, pure indium has rather low tensile strength resulting in poor reliability. To enhance the mechanical properties of such a material, a new composite consisting of electrospun randomly oriented continuous polyimide fibres and indium was fabricated. The composite has been characterised by tensile tests and in-situ transmission electron microscopy straining observations. It is shown that the composite's ultimate tensile strength at 20 degrees C is five times higher than that of pure indium, and the strength of the composite exceeds the summation of strengths of the individual components. Furthermore, contrary to most metallic matrix materials, the ultimate tensile strength of the composite decreases with the increased strain rate in a certain range. The chemical composition and tensile fracture of the novel composite have been analysed comprehensively by means of scanning transmission electron microscopy and scanning electron microscopy. A strengthening mechanism based on mutually reinforcing structures formed by the indium and surrounding fibres is also presented, underlining the effect of compressing at the fibre/indium interfaces by dislocation pileups and slip pinning.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- In-situ TEM tensile test
- Strengthening mechanism
- Microstructure
- Fibre-reinforced indium matrix composite
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Luo, Xin, 1983
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Peng, J. C.
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Zandén, Carl, 19 ...
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Yang, Y. P.
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Mu, Wei, 1985
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Edwards, Michael ...
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visa fler...
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Ye, L.
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Liu, Johan, 1960
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visa färre...
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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Acta Materialia
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Chalmers tekniska högskola