• Microhardness measurement in nonmetallic materials

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/009/04/0287-0294

    • Keywords

       

      Indentation hardness; microhardness; Vickers hardness; non-metallic materials

    • Abstract

       

      The load dependence of Vicker’s indentation hardness has been measured in some non-metallic materials and thin foils. A load of 100 g appears to be appropriate for comparing materials. Foil thickness, especially for soft metals like copper, must be at least twenty times the impression diagonal to get a correct value of hardness. The Meyer index varies for materials and can be used for comparison because it seems to pertain to the nature of chemical bonds. The index for boron carbide is similar to glass as was expected by Rice.

    • Author Affiliations

       

      V Saraswati1

      1. Materials Development Laboratory, Indira Gandhi Center for Atomic Research, Kalpakkam - 603 102, India
    • Dates

       
  • Bulletin of Materials Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.