CVD diamond coating of steel on a CVD-TiBN interlayer

Bareiβ, J.C.; Hackl, Gerrit; Popovska, N.; Rosiwal, Stefan; Singer, Robert F.

doi:10.1016/j.surfcoat.2005.12.035

Cited by 28 publications

(13 citation statements)

References 15 publications

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“…The intermediate layer must mitigate the large mismatch in thermal expansion coefficient (TEC) [17,[26][27][28][29][30][31][32][33][34][35][36][37][38][39]. Diamond growth needs high temperature, usually over 600 • C and the best growth is around 850 • C. The mismatch between TECs causes a huge thermal stress during cooling from growth to room temperature.…”

Section: Introductionmentioning

confidence: 99%

Interlayers Applied to CVD Diamond Deposition on Steel Substrate: A Review

et al. 2017

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Academics and industry have sought after combining the exceptional properties of diamonds with the toughness of steel. Since the early 1990s several partial solutions have been found but chemical vapor deposition (CVD) diamond deposition on steel substrate continues to be a persistent problem. The main drawbacks are the high carbon diffusion from gas phase into substrate, the transition metals on the material surface that catalyze sp 2 bond formation, instead of sp 3 bonds, and the high thermal expansion coefficient (TEC) mismatch between diamond and steels. An intermediate layer has been found necessary to increase diamond adhesion. Literature has proposed many efficient intermediate layers as a diffusion barrier for both, carbon and iron, but most intermediate layers shown have not solved TEC mismatch. In this review, we briefly discuss the solutions that exclusively work as diffusion barrier and discuss in a broader way the ones that also solve, or may potentially solve, the TEC mismatch problem. We examine some multilayers, the iron borides, the chromium carbides, and vanadium carbides. We go through the most relevant results of the last two and a half decades, including recent advances in our group. Vanadium carbide looks promising since it has shown excellent diffusion barrier properties, its TEC is intermediary between diamond and steel and, it has been thickened to manage thermal stress relief. We also review a new deposition technique to set up intermediate layers: laser cladding. It is promising because of its versatility in mixing different materials and fusing and/or sintering them on a steel surface. We conclude by remarking on new perspectives.

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Section: Introductionmentioning

confidence: 99%

Interlayers Applied to CVD Diamond Deposition on Steel Substrate: A Review

et al. 2017

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“…Direct synthesis of diamond film on steel has been limited because of at least three major obstacles 1,2 . First iron is not a catalyst for CVD diamond growth, which forms graphite layer on the surface instead of a diamond.…”

Section: Introductionmentioning

confidence: 99%

Diamond Films on Stainless Steel Substrates with an Interlayer Applied by Laser Cladding

et al. 2017

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The objective of this work is the Hot Filament Chemical Vapor Deposition (HFCVD) of diamond films on stainless steel substrates using a new technique for intermediate barrier forming, made by laser cladding process. In this technique, a powder layer is irradiated by a laser beam to melt the powder layer and the substrate surface layer to create the interlayer. The control of the laser beam parameters allows creating homogeneous coating layers, in rather large area in few seconds. In this work, the silicon carbide powder (SiC) was used to create an intermediate layer. Before the diamond growth, the samples were subjected to the seeding process with diamond powder. The diamond deposition was performed using Hot-Filament CVD reactor and the characterizations were Scanning Electron Microscopy, X-ray diffraction, Raman Scattering Spectroscopy and Scratch Test.

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“…In these respects, coatings of ferrous materials with diamond thin films by chemical vapor deposition (CVD) 1) have been intensively investigated [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] to broaden considerably the scope of applications of diamond as well as ferrous materials. However, the diamond CVD on ferrous alloy substrates has been hardly achieved, owing to the catalytic effect of iron and the rapid diffusion coefficient of carbon in iron.…”

Section: Introductionmentioning

confidence: 99%

“…18) All the problems mentioned above originally come from high substrate temperatures in diamond CVD processes, typically above 700 C. A high process temperature leads to not only those problems but also substrate deterioration, for instance, the softening of steel substrates. 19) Once a low process temperature, below 400 C for example, is realized, they carry negligibly small effects on diamond growth.…”

Section: Introductionmentioning

confidence: 99%

Direct Coating of Nanocrystalline Diamond on Steel

Tsugawa¹,

Kawaki²,

Ishihara³

et al. 2012

Jpn. J. Appl. Phys.

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Nanocrystalline diamond films have been successfully deposited on stainless steel substrates without any substrate pretreatments to promote diamond nucleation, including the formation of interlayers. A low-temperature growth technique, 400 C or lower, in microwave plasma chemical vapor deposition using a surface-wave plasma has cleared up problems in diamond growth on ferrous materials, such as the surface graphitization, long incubation time, substrate softening, and poor adhesion. The deposited nanocrystalline diamond films on stainless steel exhibit good adhesion and tribological properties, such as a high wear resistance, a low friction coefficient, and a low aggression strength, at room temperature in air without lubrication. #

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CVD diamond coating of steel on a CVD-TiBN interlayer

Cited by 28 publications

References 15 publications

Interlayers Applied to CVD Diamond Deposition on Steel Substrate: A Review

Interlayers Applied to CVD Diamond Deposition on Steel Substrate: A Review

Diamond Films on Stainless Steel Substrates with an Interlayer Applied by Laser Cladding

Direct Coating of Nanocrystalline Diamond on Steel

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