Chemically vapour-deposited hard coatings: Applications and selection guidelines

Lux, B.; Haubner, Roland; Wohlrab, Christina

doi:10.1016/0257-8972(89)90089-3

Cited by 36 publications

(4 citation statements)

References 13 publications

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“…Undoped alumina coatings are widely used for cutting applications due to their high chemical stability, low thermal conductivity and high hardness also at high temperatures [6][7][8] and their microstructure is well investigated [9][10][11][12]. Common coating architectures consist of TiN, TiC, and/or TiCN base-layers which are deposited prior to a mono-or multilayer of alumina [9,10,13].…”

Section: Introductionmentioning

confidence: 99%

Titanium doped CVD alumina coatings

Hochauer

Mitterer

Penoy

et al. 2008

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Titanium doped CVD alumina coatings

Hochauer

Mitterer

Penoy

et al. 2008

Surface and Coatings Technology

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“…Chemical Vapour Deposition (CVD) technique to produce high quality diamond films was extensively investigated since 1980s [1]. The recent development of CVD diamond technology allows high quality coatings for tungsten carbides and silicon carbides to improve the properties for many industrial applications [2,3]. However diamond coated tool inserts are not extensively used due to their insufficient adhesion strength between diamond films and cemented carbide inserts which result in producing built-up edge (BUE) with poor surface finish [4].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Experimental Study on Machining Performance of Aluminium against Advanced Diamond Coated Cutting Tool Inserts

Sahu

Kumar

Yadav

2022

MSF

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Carbide tools with mono/multilayer coating such as TiN, TiC, TiAIN, TiB2 and Al2O3 on inserts of WC-Co generated key success for machining of ferrous materials without coolant/lubrication. So far dry machining of aluminium, manufacturing industries such as automobile and aerospace engineering are facing considerable challenges. Exploration of correct cutting tool for machining of aluminium still persists in the present day context. This paper experimentally investigated the affinity and performance of different cutting tool materials available in local tool shopping center along with the diamond coated tool insert prepared and developed in our own HFCVD reactor for machining of aluminium in dry condition. Finally it is revealed that, due to the low chemical affinity, small magnitude of cutting force, chemical inertness and remarkable anti-welding characteristics, diamond coated tool displayed improved performance as compared to other tools.

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“…Transition metal nitrides used as protective coatings demonstrate excellent wear resistance, high hardness and chemical inertness [1,2]. As a result, they were extensively studied and became indispensable for cutting tool applications [3].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Chemical Vapour Deposited AlHfN Coatings

Rauchenwald

Lessiak²,

Weißenbacher³

et al. 2020

DDF

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Chemical vapour deposited HfN can be utilised as a component of multilayer systems in protective coatings on cutting tools. In this study, related AlHfN coatings were synthesized through a reaction of metallic hafnium and aluminium with HCl gas forming gaseous HfCl4 and AlCl3, which were subsequently transported into a heated coating reactor. Via high temperatures and separately introduced NH3 and N2 as reaction gases, AlHfN coatings were deposited on hardmetal inserts. By varying the ratio between AlCl3 and HfCl4, compositionally different AlHfN coatings were examined. Additionally, surface morphology, composition as well as crystalline phases of the obtained coatings were analysed by scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray diffraction. Finally, the microstructure of the cross section of a coating was investigated via transmission electron microscopy. The observations revealed a great impact of the gas composition on the morphology and crystal structures of the coatings. Within the layer, the growth of columnar microstructures was detected. Additionally, the formation of an amorphous HfN intermediate layer between the substrate and the AlHfN with a thickness of approximately 2 nm was found.

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Chemically vapour-deposited hard coatings: Applications and selection guidelines

Cited by 36 publications

References 13 publications

Titanium doped CVD alumina coatings

Titanium doped CVD alumina coatings

A Comparative Experimental Study on Machining Performance of Aluminium against Advanced Diamond Coated Cutting Tool Inserts

Characterisation of Chemical Vapour Deposited AlHfN Coatings

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