diamond-pyramid hardness test
diamond-pyramid hardness test[¦dī·mənd ¦pir·ə·mid ′härd·nəs ‚test]
An indentation hardness test in which a diamond-pyramid indenter, with a 136° angle between opposite faces, is forced under variable loads into the surface of a test specimen. Also known as Vickers hardness test.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.