• Login
    View Item 
    •   MINDS@UW Home
    • MINDS@UW Madison
    • College of Engineering, University of Wisconsin--Madison
    • Department of Civil and Environmental Engineering
    • Datasets & Supplementary Materials
    • View Item
    •   MINDS@UW Home
    • MINDS@UW Madison
    • College of Engineering, University of Wisconsin--Madison
    • Department of Civil and Environmental Engineering
    • Datasets & Supplementary Materials
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Nanoindentation dataset of paper submitted to Journal of Geophysical Research: Solid Earths entitled "Comparison of biotite elastic properties recovered by spherical nanoindentations and atomistic simulations - influence of nano-scale defects in phyllosilicates"

    Thumbnail
    File(s)
    Lab Nanoindentation Data (34.80Mb)
    README file (4.923Kb)
    Date
    2021-02-23
    Author
    Sone, Hiroki
    Lanin, Eril
    Metadata
    Show full item record
    Abstract
    Phyllosilicate minerals, due to their sheets structure and morphology, are known to cause anisotropy in bulk rock properties and make the bulk rock more compliant. Accurately characterizing the micromechanical behavior of phyllosilicate minerals from laboratory observations, which eventually translates to the bulk rock behavior, is still challenging due to their fine-grained nature. Recent advances in atomistic simulations open the possibility of theoretically investigating such mineral mechanical behavior. We compare the elastic properties of biotites recovered by spherical nanoindentation with those predicted from density functional theory (DFT) simulations to investigate to what extent theoretical predictions reproduce actual phyllosilicate properties. Spherical nanoindentation was conducted using schist rocks from Poorman Formation, South Dakota, USA, to recover continuous indentation stress-strain curves. Loading in the layer-normal orientation shows an average indentation modulus (𝑀) of about 35 GPa, while loading in the layer-parallel orientation gives a higher average of about 95 GPa. To facilitate comparison, the elastic stiffness constants (cij) determined from DFT were converted to indentation modulus (𝑀) using solutions proposed in this study. The majority of the nanoindentation modulus results are below the values inferred from the simulation results representing ideal defect-free minerals. We suggest that crystal defects present at the nano-scale, potentially ripplocations, are the dominant cause of the lower indentation modulus recovered from nanoindentation compared to those inferred from DFT simulations. Results highlight the importance of acknowledging the defects that exist down to the nano-scale as it modifies the mechanical properties of phyllosilicates compared to its pure defect-free form.
    Subject
    Research Subject Categories::NATURAL SCIENCES::Earth sciences::Endogenous earth sciences::Solid earth geology and petrology
    Research Subject Categories::NATURAL SCIENCES::Earth sciences::Endogenous earth sciences::Mineralogy
    Research Subject Categories::NATURAL SCIENCES::Earth sciences::Endogenous earth sciences::Solid earth physics
    Permanent Link
    http://digital.library.wisc.edu/1793/81303
    DOI
    https://doi.org/10.21231/BX1J-1W92
    Type
    Dataset
    Citation
    Lanin, E., & Sone, H. (2021). Nanoindentation dataset of paper submitted to Journal of Geophysical Research: Solid Earths entitled "Comparison of biotite elastic properties recovered by spherical nanoindentations and atomistic simulations - influence of nano-scale defects in phyllosilicates" [Data set]. University of Wisconsin-Madison. https://doi.org/10.21231/BX1J-1W92
    Part of
    • Datasets & Supplementary Materials

    Related items

    Showing items related by title, author, creator and subject.

    • The New Pulpit: Museums, Authority, and the Cultural Reproduction of Young-Earth Creationism 

      Barone, Lindsay Marie (2015-05-01)
      Since the mid-twentieth century there has been increasing concern among evangelical Christians over the depiction of human origins in American education. For young-Earth creationists, it has been a priority to replace ...
    • Penetrative Convection in Earth's Mantle : a Test Using Whole-Earth Geochemical Model. 

      Ulrich, Sarah A. (2009-07-23)
      The nature of mantle convection within the Earth remains one of the most important unanswered questions regarding Earth evolution. Two competing theories have been proposed; one backed primarily by geochemists invoking ...
    • Low Earth orbit sounder retrieval products at geostationary Earth orbit spatial and temporal scales 

      Anheuser, James F. (University of Wisconsin-Madison, 2020)

    Contact Us | Send Feedback
     

     

    Browse

    All of MINDS@UWCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Login

    Contact Us | Send Feedback