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About: Berkovich tip     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Trial105799212, within Data Space : dbpedia.org associated with source document(s)

Type: placeyago:WikicatRussianInventionsyago:WikicatSovietInventionsyago:Ability105616246yago:Abstraction100002137yago:Cognition100023271yago:Creativity105624700yago:Experiment105798043yago:HigherCognitiveProcess105770664yago:Inquiry105797597yago:Invention105633385yago:ProblemSolving105796750yago:Process105701363yago:PsychologicalFeature100023100yago:WikicatHardnessTestsyago:Thinking105770926yago:Trial105799212 New Facet based on Instances of this Class

A Berkovich tip is a type of nanoindenter tip used for testing the indentation hardness of a material. It is a three-sided pyramid which is geometrically self-similar. The popular Berkovich now has a very flat profile, with a total included angle of 142.3 degrees and a half angle of 65.27 degrees, measured from the axis to one of the pyramid flats. This Berkovich tip has the same projected area-to-depth ratio as a Vickers indenter. The original tip shape was invented by Russian scientist E.S. Berkovich in the USSR c. 1950, which has a half angle of 65.03 degrees.