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| Principle of operation |
| Principle: |
Indentation is currently the most practical method of testing. A material with a harness near that of diamond is used to create a permanent deformation in the surface of the test sample, then the hardness of the test sample is determined from the load needed to create the deformation and the dimensions of the parmanent deformation. This method is applied to widely used harness standards, including Vickers, Knoop, Rockwell, Brinell hardness.
| Capability |