Patent ID: 7918293
Filing Date: 2011-04-05
Classification: C23C,C30B,G01N

Abstract:
1. A method of evaluating a superabrasive volume, the method comprising: providing a superabrasive volume comprising a plurality of superabrasive grains bonded to one another forming a coherent matrix; exposing a superabrasive volume to beta particles; detecting a quantity of scattered beta particles; perceiving a boundary between a first region of the superabrasive volume and a second region of the superabrasive volume in response to detecting the quantity of scattered beta particles wherein each of the first volume and the second volume include a portion of the coherent matrix, and wherein perceiving the boundary between the first region and the second region of the superabrasive volume comprises perceiving a boundary between a catalyst-containing region and a catalyst-diminished region of the superabrasive volume.