Influence of Cobalt on the Adhesion Strength of Polycrystalline Diamond Coatings on WC–Co Hard Alloys

Journal Article · Thu Feb 15 04:00:00 EST 2018 · Technical Physics

DOI:https://doi.org/10.1134/S1063784218020226· OSTI ID:22783929

Gaidaichuk, A. V.; Okhotnikov, V. V. ^[1]

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1. National Research Tomsk Polytechnic University (Russian Federation)

The influence of cobalt on the phase composition and adhesion strength of polycrystalline diamond coatings has been studied using scanning electron microscopy, Raman spectroscopy, and X-ray microanalysis. The coatings have been deposited on WC–Co hard alloy substrates in glow discharge plasma. It has been found that the catalytic amorphization of carbon only takes place during the direct synthesis of the diamond coating, when the cobalt vapor pressure over the substrate is high and the cobalt-related degradation of the synthesized diamond is absent.

• OSTI ID: 22783929
• Journal Information: Technical Physics, Journal Name: Technical Physics Journal Issue: 2 Vol. 63; ISSN 1063-7842
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ADHESION
ALLOYS
AMORPHOUS STATE
COATINGS
COBALT
DIAMONDS
GLOW DISCHARGES
MICROANALYSIS
POLYCRYSTALS
RAMAN SPECTROSCOPY
SCANNING ELECTRON MICROSCOPY
SUBSTRATES
SYNTHESIS
TUNGSTEN CARBIDES
VAPOR PRESSURE
X RADIATION
X-RAY EMISSION ANALYSIS