Combined effect of laser texturing and carburizing on the bonding strength of DLC coatings deposited on medical titanium alloy

Dong, Bangzhu; Guo, Xuhong; Zhang, Kedong; Zhang, Yuping; Li, Zhihao; Wang, Weisu; Cai, Chunhua

doi:10.1016/j.surfcoat.2021.127951

Cited by 34 publications

(26 citation statements)

References 28 publications

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“…Hydrogenated amorphous carbon (a-C:H), known as diamondlike carbon (DLC), has been extensively studied over the past few decades. [1][2][3][4][5] Benefiting from its unique microstructure consisting of sp 2 -bonded carbon clusters interconnected with sp 3bonded sites, [6,7] DLC film has a series of excellent physical and chemical properties, such as infrared band transparency, high hardness, wear resistance, small friction coefficient, stable chemical properties, corrosion resistance, small thermal expansion coefficient, high thermal conductivity, high resistivity, good optical transparency, biocompatibility, etc., making DLC films an ideal wear-resistant material for optics, [8,9] magnetic memory disks, [10,11] metal tools, [12,13] and biomedical prostheses. [14,15] We divide hydrogenated amorphous carbon into four categories: hydrogenated tetrahedral amorphous carbon film (ta-C:H), the sp 3 content of the ta-C:H film can be up to 70% [16] ; polymer-like films (H-PLC); a-C:H films with the highest hydrogen content (40-50%), which are soft and low density; [17] and diamond-like a-C: H film (H-DLC); this kind of film has medium H content (20-40%).…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogenated amorphous carbon (a‐C:H), known as diamond‐like carbon (DLC), has been extensively studied over the past few decades. [ 1–5 ] Benefiting from its unique microstructure consisting of sp 2 ‐bonded carbon clusters interconnected with sp 3 ‐bonded sites, [ 6,7 ] DLC film has a series of excellent physical and chemical properties, such as infrared band transparency, high hardness, wear resistance, small friction coefficient, stable chemical properties, corrosion resistance, small thermal expansion coefficient, high thermal conductivity, high resistivity, good optical transparency, biocompatibility, etc., making DLC films an ideal wear‐resistant material for optics, [ 8,9 ] magnetic memory disks, [ 10,11 ] metal tools, [ 12,13 ] and biomedical prostheses. [ 14,15 ]…”

Section: Introductionmentioning

confidence: 99%

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Effects of Different Silicon Substrates on the Structure and Properties of Deposited Diamond‐like Carbon Films

Zhang

2023

Physica Status Solidi (a)

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Diamond‐like carbon (DLC) has attracted much attention due to its unique properties such as excellent physicochemical and biological properties. Herein, DLC coatings are deposited on four different silicon substrates using a radio frequency plasma‐assisted chemical vapor deposition (RF‐PECVD) technique. The structure and mechanical properties of DLC coatings deposited on different types of silicon substrates under different powers are compared. The surface morphology of the samples is characterized by scanning electron microscopy. The surface roughness of DLC films deposited on different silicon substrates is measured by scanning probe microscopy (SPM). The structural changes of the coatings are investigated by visible Raman spectroscopy. The analysis of DLC films deposited on different silicon substrates reveals that the structure of DLC films deposited on silicon is affected by different crystal directions of silicon substrates (different atomic densities in different crystal directions) and different conduction modes (electronic conduction and hole conduction). Regarding the DLC films deposited on the same substrate, the overall performance of P‐type silicon is better at 150 W, and the overall performance of N‐type silicon is better when the deposition power is 100 W.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Different Silicon Substrates on the Structure and Properties of Deposited Diamond‐like Carbon Films

Zhang

2023

Physica Status Solidi (a)

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“…Owing to the development of technologies using a concentrated stream of energy -a laser beam (an electromagnetic wave that exhibits both temporal and spatial coherence -allowing to obtain a high concentration of energy (both in terms of area and time of impact on the workpiece material), which, in conjunction with the kinematic capabilities of multi-axis CNC machine tools and computer aided design programs for machining technology, creates great opportunities for the constitution of the surface topography of manufactured parts [24,25]. Cho et al in their work dealt with the texturing of polyoxymethylene surfaces using a CNC machine tool.…”

Section: Introductionmentioning

confidence: 99%

Surface Texturing on a CNC Machine Tool Using a Laser

Jóźwik¹,

Dziedzic²

2023

Adv. Sci. Technol. Res. J.

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In the paper stages of the process of constituting a surface with the texture of the injection mold of a wheeled vehicle steering wheel using laser technology was discusses. During micromachining process with texturing there is a 5-axis CNC-controlled CNC machine TOOL LASERTEC 65 Shape used with a rigid monoBLOCK structure with Siemens 840D sl control, equipped with a fiber laser with a power of 100 W, a wavelength of 1064 nm and a focal length of 181 mm. Processing technology was prepared using Autodesk Maya, Adobe Photoshop, Adobe Illustrator, NX9, Lastex v. 2.27.26 computer programs and machine tool control systems. Results of machining the steering wheel of a wheeled vehicle with a concentrated laser beam are discussed. Geometric structure of the surface after texturing was evaluated. Presented technology can be used to obtain the desired texture properties on the surface of the parts.

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“…Ti and its alloy implants are prone to corrosion in long-term contact with body fluid, resulting in corrosion cracking and shedding of the oxide coatings, etc; [54,55] 4) Wear resistance. The bonding between implants and their surrounding bone tissue is mechanical, which can lead to inflammation due to the debris accumulation caused by friction; [56,57] and 5) Antibacterial activity. Bacterial infection is a serious problem in implant surgery, which can be induced due to lack of antibacterial activity.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Porous Titanium and Titanium Alloy Implants Manufactured by Selective Laser Melting: A Review

Liu,

Li,

Wang

et al. 2023

Adv Eng Mater

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Titanium (Ti) and its alloy implants with porous structure manufactured by selective laser melting (SLM) can match elastic modulus of human bone to reduce the stress‐shielding effect and satisfy the personalized requirement in orthopedic surgery. Compared with conventional casting and forging Ti and its alloy implants, SLM implants possess unique microstructural features and excellent comprehensive mechanical properties. However, the un‐melted powder particles inevitably adhere to the surfaces of SLM implants, which may result in excessive surface roughness and potential health risks. Moreover, there are significant issues encountered, such as bioactivity, toxicity, antibacterial activity, corrosion and wear resistance. Consequently, surface modification methods are essential to remove the un‐melted powder particles and improve biological and mechanical properties of SLM implants. Herein, the research efforts focus exclusively on chemical (acid treatment, alkali treatment, sol‐gel, chemical vapor deposition and atomic layer deposition) and electrochemical methods (anodization and microarc oxidation) for SLM Ti and its alloy implants, especially for porous structures. Particularly, the characteristics of these methods are summarized, and their commonly used pre‐ and post‐treatment methods are introduced. In addition, the development trends and challenges in surface modification of SLM Ti and its alloy implants are discussed.This article is protected by copyright. All rights reserved.

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Combined effect of laser texturing and carburizing on the bonding strength of DLC coatings deposited on medical titanium alloy

Cited by 34 publications

References 28 publications

Effects of Different Silicon Substrates on the Structure and Properties of Deposited Diamond‐like Carbon Films

Effects of Different Silicon Substrates on the Structure and Properties of Deposited Diamond‐like Carbon Films

Surface Texturing on a CNC Machine Tool Using a Laser

Surface Modification of Porous Titanium and Titanium Alloy Implants Manufactured by Selective Laser Melting: A Review

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