Mechanical characterization of nano-structured materials using nanoindentation
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- Mechanical characterization of nano-structured materials using nanoindentation
- Kim, Ju-Young; Kim, SH; Lee, JS; Lee, KW; Kwon, D
- Indentation size effect; Interface strengthening; Nanoindentation; Nano-multilayers; Tip bluntness
- Issue Date
- KOREAN INST METALS MATERIALS
- METALS AND MATERIALS INTERNATIONAL, v.12, no.3, pp.219 - 223
- The principal strengths of the nanoindentation technique, which is used extensively to measure the mechanical properties of nano/micro materials, are easy sample preparation and simple experimental method. Hardness and Young's modulus are essential properties measured by nanoindentation; hardness corresponds to resistance to plastic deformation whereas Young's modulus is related to elastic deformation. Two key difficulties arise in association with narroindentation on small volumes: measurement accuracy and material response. Here we discuss the indentation size effect (ISE) considering tip bluntness and variation in hardness of nano-multilayers with a bilayer period, representative research on measurement improvement, and material response at nanoscalles.
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