Solid particle erosion of CVD diamond coatings

Wheeler, D.W.; Wood, R.J.K.

doi:10.1016/s0043-1648(99)00212-4

Cited by 42 publications

(23 citation statements)

References 62 publications

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“…Other coating processes, involving chemical vapour deposition (CVD) have been used to produce ultra-hard coatings such as diamond for pump components and mechanical seals [45][46][47].…”

Section: Tribo-corrosion Of Different Coating Typesmentioning

confidence: 99%

Tribo-corrosion of coatings: a review

Wood¹

2007

J. Phys. D: Appl. Phys.

225

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This paper reviews the available literature relating to the emerging research into the performance of coatings under combined wear and corrosion conditions. Understanding how coatings perform under these tribo-corrosion conditions is essential if the service life of equipment is to be predicted and to allow service life to be extended. Therefore, the tribo-corrosion performance of coatings deposited by a variety of techniques is discussed and the main mechanisms associated with their degradation under combined wear and corrosion highlighted. Coating composition, microstructure, defect level, adhesion, cohesion and substrate properties are seen as some of the critical elements in coating performance when subjected to tribo-corrosion contacts. The importance of post-coating deposition treatments such as laser resurfacing and sealing are also discussed. Interactions between wear and corrosion mechanisms are identified along with some models and mapping techniques that aim to inform coating selection and predict performance. Recent investigations into mono-layer as well as multilayered and functionally graded coatings are reviewed as candidates for wear-corrosion resistant surfaces. The review reveals the need for a more considered approach to tribo-corrosion testing and the way in which the results are analysed and presented. For example, the test conditions should be appropriate to the coating system under test; the level of in situ instrumentation deployed and the post-test analysis of in situ electrochemical data should be carefully selected as well as details given of the composition of any surface tribofilms formed and the identification of the degradation mechanisms.

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“…Other coating processes, involving chemical vapour deposition (CVD) have been used to produce ultra-hard coatings such as diamond for pump components and mechanical seals [45][46][47].…”

Section: Tribo-corrosion Of Different Coating Typesmentioning

confidence: 99%

Tribo-corrosion of coatings: a review

Wood¹

2007

J. Phys. D: Appl. Phys.

225

View full text Add to dashboard Cite

show abstract

“…The Figure A.2, show that all coatings are heavily textured. We find that with the addition of Si, the preferred crystallographic orientation of the planes parallel to the surface changes from [110] to [111]. This latter orientation prevails up to C Si = 6.7 at.%; for C Si = 11.6 at.% the coating becomes highly textured with a preferred [100] orientation.…”

Section: A31 Microstructurementioning

confidence: 78%

“…While DSI is representative of intrinsic material properties, the small scale of such a method confines the indentations to single columns and does not measure the micrometric material properties which are representative of the SPE mechanisms. Upon adding Si to CrN, an increase in H and H v is observed as well along with a change in the texture from [110] to [111] orientations. The latter effect suggests that Me substitution by Si atoms causes increased strain in the CrN lattice since preferred orientation changes from [110] to [111] typically occur because of the better ability of the latter one to accommodate lattice strain [227].…”

Section: A4 Discussionmentioning

confidence: 92%

“…Upon adding Si to CrN, an increase in H and H v is observed as well along with a change in the texture from [110] to [111] orientations. The latter effect suggests that Me substitution by Si atoms causes increased strain in the CrN lattice since preferred orientation changes from [110] to [111] typically occur because of the better ability of the latter one to accommodate lattice strain [227]. The Cr-Si-N coating with C Si = 11.6 at.% presents a texture change from (111) to (200), indicative of coating densification because (111) textured coatings typically possess a more opened structure, with more voids between the columns [229].…”

Section: A4 Discussionmentioning

confidence: 92%

“…The largest contribution in the field comes from Wheeler and Wood who have studied in detail the material removal mechanisms during high energy SPE of thick CVD diamond [81,[109][110][111][112][113][114][115][116][117][118][119][120]. interfacial (a) debonding [118] and (b) cracking [119].…”

Section: Spe Of Carbon-based Coatingsmentioning

confidence: 99%

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