Homogeneous and structured PCD/WC-Co materials for drilling

The mechanical properties of polycrystalline diamond as a function of strain rate and temperature

“…Young's modulus testing of PCD/WC-Co specimens was carried out by Belnap and Griffo [5] by tapping the simply supported samples and measuring their resonant frequency, according to the relevant testing standard [6].…”

Impact fatigue fracture of polycrystalline diamond compact (PDC) cutters and the effect of microstructure

“…The bonding is done during a high pressure and high temperature sintering process. The polycrystalline diamond layer is also created during this process to form a sintered material characterised by strong diamond to diamond bonding [2]. However, despite their extensive use and excellent abrasion resistance PDC tools are still highly susceptible to fractures [3--8].…”

Damage induced by monotonic and cyclic spherical indentation in polycrystalline diamond (PCD)

“…Considering the composite nature of PCD tools, i.e. diamond particulates distributed through a (small volume fraction) cobalt-rich bonding matrix [18][19][20], it is clear that existing knowledge on damage induced by indentation for the above diamond-related materials is not only scarce but also inappropriate. This is particularly true from a perspective of optimized performance through microstructural design of PCD tools.…”