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      Fundamentals of Superior Properties in Bulk NanoSPD Materials

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      Materials Research Letters

      Informa UK Limited

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          Giant magnetoresistance in heterogeneous Cu-Co alloys.

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            Giant magnetoresistance in nonmultilayer magnetic systems.

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              Ultrahigh strength and high electrical conductivity in copper.

              Methods used to strengthen metals generally also cause a pronounced decrease in electrical conductivity, so that a tradeoff must be made between conductivity and mechanical strength. We synthesized pure copper samples with a high density of nanoscale growth twins. They showed a tensile strength about 10 times higher than that of conventional coarse-grained copper, while retaining an electrical conductivity comparable to that of pure copper. The ultrahigh strength originates from the effective blockage of dislocation motion by numerous coherent twin boundaries that possess an extremely low electrical resistivity, which is not the case for other types of grain boundaries.
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                Author and article information

                Journal
                Materials Research Letters
                Materials Research Letters
                Informa UK Limited
                2166-3831
                September 28 2015
                January 02 2016
                July 28 2015
                January 02 2016
                : 4
                : 1
                : 1-21
                Article
                10.1080/21663831.2015.1060543
                © 2016

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