The growth behavior and surface performance enhancement of diamond film deposited on polycrystalline diamond compact

2021 ◽  
pp. 108682
Author(s):  
Saifei Fan ◽  
Xianyi Lv ◽  
Hongxin Xu ◽  
Qiliang Wang
1996 ◽  
Vol 11 (7) ◽  
pp. 1765-1775 ◽  
Author(s):  
James M. Olson ◽  
Michael J. Dawes

Thin diamond film coated WC-Co cutting tool inserts were produced using arc-jet and hot-filament chemical vapor deposition. The diamond films were characterized using SEM, XRD, and Raman spectroscopy to examine crystal structure, fracture mode, thickness, crystalline orientation, diamond quality, and residual stress. The performance of the tools was evaluated by comparing the wear resistance of the materials to brazed polycrystalline diamond-tipped cutting tool inserts (PCD) while machining A390 aluminum (18% silicon). Results from the experiments carried out in this study suggest that the wear resistance of the thin diamond films is primarily related to the grain boundary strength, crystal orientation, and the density of microdefects in the diamond film.


Author(s):  
Alexandr A. Shul’zhenko ◽  
Lucyna Jaworska ◽  
Alexandr N. Sokolov ◽  
Vladislav G. Gargin ◽  
Ludmila A. Romanko

The electrical and physical properties of the electrically conductive super hard material on the basis of polycrystalline diamond and n-layered graphenes obtained at high pressures and temperatures were studied. It was established that the increase in graphene in a polycrystalline diamond compact leads to a sharp decrease in resistance. Wherein the hardness of the samples is slightly inferior to the hardness of diamond poly crystals obtained without the use of graphene.


2013 ◽  
Vol 19 (S2) ◽  
pp. 1050-1051 ◽  
Author(s):  
J.N. Williard ◽  
D.K. Colbert

Extended abstract of a paper presented at Microscopy and Microanalysis 2013 in Indianapolis, Indiana, USA, August 4 – August 8, 2013.


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