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      Size effects in the deformation of sub-micron Au columns

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      Philosophical Magazine
      Informa UK Limited

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          Sample dimensions influence strength and crystal plasticity.

          When a crystal deforms plastically, phenomena such as dislocation storage, multiplication, motion, pinning, and nucleation occur over the submicron-to-nanometer scale. Here we report measurements of plastic yielding for single crystals of micrometer-sized dimensions for three different types of metals. We find that within the tests, the overall sample dimensions artificially limit the length scales available for plastic processes. The results show dramatic size effects at surprisingly large sample dimensions. These results emphasize that at the micrometer scale, one must define both the external geometry and internal structure to characterize the strength of a material.
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            The deformation of plastically non-homogeneous materials

            M F Ashby (1970)
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              Size dependence of mechanical properties of gold at the micron scale in the absence of strain gradients

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                Author and article information

                Journal
                Philosophical Magazine
                Philosophical Magazine
                Informa UK Limited
                1478-6435
                1478-6443
                November 21 2006
                November 21 2006
                : 86
                : 33-35
                : 5567-5579
                Article
                10.1080/14786430600567739
                fce85176-36b5-4d8b-b22f-fb29d25dbf41
                © 2006
                History

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