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Nanometer-precision non-local deformation reconstruction using nanodiamond sensing.

ABSTRACT: Spatially resolved information about material deformation upon loading is critical to evaluating mechanical properties of materials, and to understanding mechano-response of live systems. Existing techniques may access local properties of materials at nanoscale, but not at locations away from the force-loading positions. Moreover, interpretation of the local measurement relies on correct modeling, the validation of which is not straightforward. Here we demonstrate an approach to evaluating non-local material deformation based on the integration of nanodiamond orientation sensing and atomic force microscopy nanoindentation. This approach features a 5?nm precision in the loading direction and a sub-hundred nanometer lateral resolution, high enough to disclose the surface/interface effects in the material deformation. The non-local deformation profile can validate the models needed for mechanical property determination. The non-local nanometer-precision sensing of deformation facilitates studying mechanical response of complex material systems ranging from impact transfer in nanocomposites to mechano-response of live systems.

SUBMITTER: Xia K

PROVIDER: S-EPMC6646314 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Nanometer-precision non-local deformation reconstruction using nanodiamond sensing.

Xia Kangwei K Liu Chu-Feng CF Leong Weng-Hang WH Kwok Man-Hin MH Yang Zhi-Yuan ZY Feng Xi X Liu Ren-Bao RB Li Quan Q

Nature communications 20190722 1

Spatially resolved information about material deformation upon loading is critical to evaluating mechanical properties of materials, and to understanding mechano-response of live systems. Existing techniques may access local properties of materials at nanoscale, but not at locations away from the force-loading positions. Moreover, interpretation of the local measurement relies on correct modeling, the validation of which is not straightforward. Here we demonstrate an approach to evaluating non-l ...[more]

PMID: 31332185

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Nanometer-precision non-local deformation reconstruction using nanodiamond sensing.

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Nanometer-precision non-local deformation reconstruction using nanodiamond sensing.

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