Indenter geometry effects on the measurements of mechanical properties by nanoindentation with sharp indenters

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The measurement of mechanical properties by nanoindentation methods is most often conducted using indenters with the Berkovich geometry (a triangular pyramid) or with a sphere. These indenters provide a wealth of information, but there are certain circumstances in which it would be useful to make measurements with indenters of other geometries. We have recently explored how the measurement of hardness and elastic modulus can be achieved using sharp indenters other than the Berkovich. Systematic studies in several materials were conducted with a Vickers indenter, a conical indenter with a half-included tip angle of 70.3{degrees}, and the standard Berkovich indenter. All ... continued below

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7 p.

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Tsui, T.Y.; Pharr, G.M. & Oliver, W.C. May 1, 1996.

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Description

The measurement of mechanical properties by nanoindentation methods is most often conducted using indenters with the Berkovich geometry (a triangular pyramid) or with a sphere. These indenters provide a wealth of information, but there are certain circumstances in which it would be useful to make measurements with indenters of other geometries. We have recently explored how the measurement of hardness and elastic modulus can be achieved using sharp indenters other than the Berkovich. Systematic studies in several materials were conducted with a Vickers indenter, a conical indenter with a half-included tip angle of 70.3{degrees}, and the standard Berkovich indenter. All three indenters are geometrically similar and have nominally the same area-to-depth relationship, but there are distinct differences in the behavior of each. Here, we report on the application of these indenters in the measurement of hardness and elastic modulus by nanoindentation methods and some of the difficulties that occur.

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7 p.

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OSTI as DE96009402

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  • Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 8-12 Apr 1996

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  • Other: DE96009402
  • Report No.: CONF-960401--18
  • Grant Number: AC05-96OR22464;AC05-76OR00033
  • Office of Scientific & Technical Information Report Number: 230368
  • Archival Resource Key: ark:/67531/metadc671523

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • April 19, 2016, 1:26 p.m.

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Tsui, T.Y.; Pharr, G.M. & Oliver, W.C. Indenter geometry effects on the measurements of mechanical properties by nanoindentation with sharp indenters, article, May 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc671523/: accessed April 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.