Abstract
The present study was undertaken to examine the effects of metal coatings on the surfaces
of diamond crystals embedded in two kinds of bond matrix. Diamonds with or without coatings were
incorporated into two matrices for hot-pressing, thereby forming four kinds of diamond composites.
The transverse rupture strength (TRS) of the composites was measured to assess the bending strength
of the composites. SEM and EDS were used to analyze the fractured surfaces of the composites. It was
found that the TRS of the composites containing coated diamonds increased in both bond matrices.
But the coatings in the bond matrix without rare earth increased TRS a little more than the case with
rare earth due to a different failure mechanism of metal coatings.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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