TUNGSTEN SINGLE CRYSTAL AS HARDNESS STANDARD FOR NANOINDENTATION

• Abstract:

  Hardness standard of tungsten single crystal were utilized in order to check stability and reproducibility of nanoindentation testers. The pop-in load and maximum penetration depth were measured and monitored during several hundreds of repeated experiments. One of the tested instruments showed gradual increase of pop-in load and decrease of maximum depth, which indicate the indenter tip was damaged by repeated tests. The both parameters, the pop-in load and the maximum depth, can be used to detect the change of the area function; the pop-in force is more sensitive and should be easy for general users. Other applications of tungsten single crystal are also discussed.
• Keywords:

  pop-in
• Download:

  IMEKO-TC5-2007-003.pdf
• DOI:

  _unreg_tc5-2007.003

Event details: