CVD nanocrystalline diamond coatings on Ti alloy: A synchrotron-assisted interfacial investigation

Li, Y. S.; Zhang, C. Z.; T., H.; Yang, Lizhong; Zhang, L. L.; Tang, Yongbing; Li, X. J.; He, L. L.; Feng, Renfei; Yang, Q.; Hirose, Akira

doi:10.1016/j.matchemphys.2012.02.043

Cited by 24 publications

(9 citation statements)

References 23 publications

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“…It is reported that pre-treatment of the substrate, especially for pre-seeding, has a significant influence on the deposition of diamond prepared by CVD [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. In this work, a novel strategy was proposed to prepare <110> textured diamond film.…”

Section: Introductionmentioning

confidence: 99%

Chemical Vapor Deposition of <110> Textured Diamond Film through Pre-Seeding by Diamond Nano-Sheets

Yang

Wang

et al. 2022

Materials

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Diamond films prepared by chemical vapor deposition will exhibit different surface morphologies, which are determined by the texture and the structural perfection of the deposited diamond. In general, its surface morphology can be controlled by adjusting the deposition conditions. In the present work, <110> textured diamond film was deposited on single crystalline silicon through pre-seeding by diamond nanosheets, rather than controlling the deposition conditions. The employed diamond nano-sheets were prepared by cleavage along a plane, exhibiting good crystallinity. Before chemical vapor deposition, the as-prepared diamond nano-sheets were pre-seeded on the surface of single crystalline silicon as nucleation sites for diamond growth. SEM and XRD results show that the prepared diamond films have a <110> texture. FIB observation reveals that diamonds homogeneously grow on the pre-seeded diamond nano-sheets during chemical vapor deposition, achieving the diamond film with <110> texture. Our work provides a new strategy to prepare <110> textured diamond film.

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Section: Introductionmentioning

confidence: 99%

Chemical Vapor Deposition of <110> Textured Diamond Film through Pre-Seeding by Diamond Nano-Sheets

Yang

Wang

et al. 2022

Materials

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“…In initial studies, transition metal nitrides exhibited great application potential in solid particle erosion resistance [2,[6][7][8]. In recent studies, single-layer nitride coatings with high hardness were commonly used to resist solid particle erosion [9][10][11][12]. With further research, single-layer coatings were observed to be easily detachable with an increase in thickness, especially at the edge of samples.…”

Section: Introductionmentioning

confidence: 99%

Erosion Resistance and Damage Mechanism of TiN/ZrN Nanoscale Multilayer Coating

Chen

Geng

et al. 2019

Coatings

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Ceramic coating is an effective method for improving the erosion resistance of a material, particularly for titanium alloys. In this study, a TiN/ZrN (ceramic/ceramic) nanoscale multilayer coating is designed and prepared on the Ti6Al4V titanium alloy surface by the physical vapor deposition (PVD) process. The cross-sectional microstructure and phase composition are measured using SEM and XRD, respectively. The hardness, elastic modulus, and adhesion of the coating are measured by the nano-indentation and scratch method. The erosion test is conducted at a 45° angle with 100 m/s velocity using self-developed erosion equipment. The erosion resistance mechanisms of both the substrate and the coating are revealed more intuitively through a single sand particle impact test. The results show that the erosion resistance rate of the coating is 15.5 times higher than that of the titanium alloy substrate. The damage mechanisms of material removal of the coating include crack deflection, crack branching, and succeeding interaction between them when suffering an impacting load. These cracks are started from the droplets and the stress concentrations on the coating surface during the preparation of coating. They are the primary reasons for the decrease in the erosion resistance of the coating. This research is important for the optimization of the erosion-resistant coating structure.

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“…At present, these methods can not solve the erosion problem completely and effectively. Coating is an effective technology against erosion [11][12][13][14][15]. Coating with good strength and toughness on the surface of the material [16,17], combined with the use of a particle separation device, can negate the impact of the sand swallowed and promote service performance of the engine to the greatest extent.…”

Section: Introductionmentioning

confidence: 99%

Key Problems Affecting the Anti-Erosion Coating Performance of Aero-Engine Compressor: A Review

Sun

Jiao

et al. 2019

Coatings

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Sand erosion has always been a key threat to the performance and service life of aero-engines. The compressor, the key component installed at the front of the aero-engine, suffers the most from sand erosion, especially compressors serving in deserts. Ceramic hard coating is a traditional way to improve the hardness and wear resistance of cutting and grinding tools. It may also be used to improve the erosion resistance of aero- engine compressor. However, the mechanism of erosion damage is complicated, which may include wear, secondary erosion, anisotropic erosion, impact, and fatigue. Recent research discovered the major problems with ceramic hard coating on aero-engine compressors. In this paper, these following problems are discussed: the design of coating material and structure, the preparation method and technology, the effects of droplets and clusters of coating surface, microstructure and characteristics of interface. The review of the major problems and possible solutions discussed in this paper may contribute to the future research on erosion coating theoretically and practically.

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CVD nanocrystalline diamond coatings on Ti alloy: A synchrotron-assisted interfacial investigation

Cited by 24 publications

References 23 publications

Chemical Vapor Deposition of <110> Textured Diamond Film through Pre-Seeding by Diamond Nano-Sheets

Chemical Vapor Deposition of <110> Textured Diamond Film through Pre-Seeding by Diamond Nano-Sheets

Erosion Resistance and Damage Mechanism of TiN/ZrN Nanoscale Multilayer Coating

Key Problems Affecting the Anti-Erosion Coating Performance of Aero-Engine Compressor: A Review

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