Fabrication of nanostructured DLC coatings using anodic alumina films

Nakamura, Masashi; Kuno, Shingo; Hayashi, Minoru; Asoh, Hidetaka

doi:10.1016/j.diamond.2022.109104

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…The Raman waveforms displayed two distinct peaks near 1540 cm⁻¹ (G band) and 1330 cm⁻¹ (D band). These characteristic peaks confirm the DLC nature of the deposited granular protrusions [10], [11]. This Raman analysis provides further evidence of the DLC nature of the coatings and is consistent with the expectations for DLC materials.…”

Section: Raman Analysissupporting

confidence: 87%

Nanoindentation Study of Superhard Tisin, Diamond-Like Carbon (Dlc), and Tisin/DLC Hybrid Coatings on Tungsten Carbide Cutting Tools

2023

Journal of Southwest Jiaotong University

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The nanoindentation technique has emerged as a powerful method for precisely assessing the mechanical properties of materials such as hardness and modulus at the nanoscale. This paper elaborates the capabilities of nanoindentation to determine the intrinsic mechanical properties, particularly hardness and elastic modulus of advanced coatings TiSiN, DLC, and a novel TiSiN/DLC hybrid coating on tungsten carbide cutting tools. X-ray diffraction (XRD) analysis revealed unique peak orientations for each coating, with TiSiN and TiSiN/DLC hybrid coatings exhibiting a coating texture with preferred (111) and ( 200) orientations in achieving superior hardness. Raman analysis confirmed the DLC nature of the coatings. Calotest measurements demonstrated differences in coating thickness, with DLC being thinner than TiSiN and TiSiN/DLC coatings. Nanoindentation tests revealed that the TiSiN coatings displayed exceptional superhardness, with a hardness of 40.2 GPa and an elastic modulus of 405.2 GPa, whereas the TiSiN/DLC hybrid coatings showed notable improvements in hardness and elastic modulus compared with the DLC coatings, with a hardness of 32.2 GPa and an elastic modulus of 356.8 GPa. These findings underscore the mechanical strength of TiSiN coatings, making them suitable for the machining industry. The TiSiN/DLC hybrid coatings exhibit potential for various industrial applications. This research enhances our understanding of superhard coatings, contributing to surface engineering and the development of high-performance coatings.

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Section: Raman Analysissupporting

confidence: 87%

Nanoindentation Study of Superhard Tisin, Diamond-Like Carbon (Dlc), and Tisin/DLC Hybrid Coatings on Tungsten Carbide Cutting Tools

2023

Journal of Southwest Jiaotong University

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“…Widely adopted in the automotive sector for components such as engine parts and gears, DLC coatings contribute to friction reduction and enhanced wear resistance. The benefits of DLC coatings, including exceptional hardness without diamond brittleness, low friction properties, and corrosion resistance, position them as versatile assets across diverse industries, particularly in cutting tools where performance demands low friction and high wear resistance [13]- [15].…”

Section: Introductionmentioning

confidence: 99%

Ultra-Low Friction and Corrosion Protection Efficiency of Tisin/DLC Hybrid Coatings on Tungsten Carbide Cutting Tools

2023

Journal of Southwest Jiaotong University

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This paper aims to present the fabrication and characterization of novel TiSiN/DLC hybrid coatings for tungsten carbide cutting tools. The coatings were systematically evaluated for structural, mechanical, tribological, and corrosion resistance. The resultant TiSiN coatings, identified as superhard coatings, showed outstanding mechanical strength with a hardness of 40.9 GPa, an elastic modulus of 362 GPa, and a critical load to the coating failure (Lc) of 80 mN. The TiSiN/DLC hybrid coatings, altered to enhance properties beyond DLC coatings, demonstrated improvements, boasting a heightened hardness of 36.2 GPa with an elastic modulus of 320 GPa and an Lc of 56 mN. Tribometer tests revealed exceptional wear resistance with the lowest wear rate of 3.5 × 10 -7 mm³/N•m and an ultra-low friction coefficient of 0.0274, surpassing individual TiSiN and DLC coatings. Potentiostat tests demonstrated excellent corrosion protection, with the TiSiN/DLC hybrid coatings exhibiting higher corrosion potential and lower corrosion current, culminating in an impressive corrosion protective efficiency of 97.5%. These findings highlight the multifunctional capabilities of TiSiN/DLC hybrid coatings, positioning them as promising candidates for enhancing the performance and longevity of cutting tools in diverse industrial applications.

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Carbon-coated anodic aluminum oxide: Synthesis, characterization, and applications

Liu,

Pan,

Itoh

et al. 2024

Applied Physics Reviews

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Ordered porous carbon materials with regularly arranged pores and adjustable pore sizes have attracted significant attention due to their versatile applications across various fields. In this context, uniform carbon coating of anodic aluminum oxide (AAO) membranes is an effective approach to fabricating an ordered array of cylindrical carbonaceous nanopores with adjustable pore diameter and length. The resulting carbon-coated AAO (C/AAO) composite exhibits a meticulously ordered array of meso/macropores, devoid of inter-particle pores and resistance, setting it apart from conventional ordered porous carbons with powder forms. The pore dimensions of C/AAO can be precisely controlled over a wide range, and the carbon chemistry can be customized through heteroatom doping and chemical modifications, all without altering the pore structure. These inherent advantages position C/AAO as a highly promising material with broad application prospects. This review article provides a comprehensive overview of the synthesis and characterization of C/AAO and related materials, along with their diverse utilization in the fields of optics, field emission, gas sensing, energy storage, electrocatalyst support, and bionics. Furthermore, an outlook on the C/AAO materials is given at the end, highlighting their potential and associated challenges.

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Fabrication of nanostructured DLC coatings using anodic alumina films

Cited by 3 publications

References 19 publications

Nanoindentation Study of Superhard Tisin, Diamond-Like Carbon (Dlc), and Tisin/DLC Hybrid Coatings on Tungsten Carbide Cutting Tools

Nanoindentation Study of Superhard Tisin, Diamond-Like Carbon (Dlc), and Tisin/DLC Hybrid Coatings on Tungsten Carbide Cutting Tools

Ultra-Low Friction and Corrosion Protection Efficiency of Tisin/DLC Hybrid Coatings on Tungsten Carbide Cutting Tools

Carbon-coated anodic aluminum oxide: Synthesis, characterization, and applications

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