Abstract
Nanostructured multilayer Ti/ZrN coatings were synthesized by vacuum-arc deposition with a number of layers 134-533 and an average thickness 20-125nm of layers. A good planarity was revealed resulting in a range of nanometer layer from plasma streams in a reactive environment. Phase-structural changes mechanisms were established as a model of critical operating coatings’ conditions of in the surface layers under the action of an aggressive oxygen atmosphere at high temperature (700°C). The thickness parameter effect on its hardness of the multilayer system was shown. It was found that the maximum hardness of 42 GPa and the lowest abrasion of coating 1,3×10-5 mm3×H-1×mm-and counterbody 1,9×10-6 mm3×H-1×mm-1 inherent in TiN/ZrN system with the smallest layer thickness of 20 nm in the period. The results are explained by the influence of the size factor interphase boundaries magnified in a multilayer system with a nanometer thick layers.
Highlights
One of the ways to improve the functional properties of coatings based on refractory compounds nitrides is creating a multi-layer systems, in which the properties superior to the properties of each element individually can be attained by combining the various layers of nitrides
Unification of TiN and ZrN layers with high hardness in a multilayer coating allows greatly improve the strength of the material for the preservation of high hardness such a comprehensive cover by the formation of a large number of strongly phase boundaries
It is seen that layers containing TiN and ZrN phase with cubic crystal lattice without expressly preferred orientation crystallites are formed after the precipitation on surface layers are formed
Summary
This content has been downloaded from IOPscience. Please scroll down to see the full text. 110 012056 (http://iopscience.iop.org/1757-899X/110/1/012056) View the table of contents for this issue, or go to the journal homepage for more. Download details: IP Address: 150.254.110.12 This content was downloaded on 04/11/2016 at 10:13. Please note that terms and conditions apply. You may be interested in: Vacuum-Arc Evaporations of Ferrites and Compositions of Their Deposits Masahiko Naoe and Shunichi Yamanaka Nickel Ferrite Thick Films Deposited by Vacuum-Arc Discharge Masahiko Naoe and Shunichi Yamanaka Tetrahedral Amorphous Carbon Films By Filtered Cathodic Vacuum-Arc Deposition For Air-Bearing-Surface Overcoat Hiroshi Inaba, Kenji Furusawa, Shinya Hirano et al Steady state behavior of rotating plasmas in a vacuum-arc centrifuge J A Bittencourt and G O Ludwig Growth of large patterned arrays of neurons I G Brown, K A Bjornstad, E A Blakely et al Spectroscopic investigation of anode plasma Y Vitel, M Lamoureux, H Abada et al Magnetic filters in UHV arc-discharges: constructions, field modelling and tests of efficiency P Strzyzewski, J Langner, R Mirowski et al
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