Mechanical and Tribological Properties of Metal Incorporated DLC Thin Film

Ghadai, Ranjan Kumar; Singh, K M; Sharma, Anurag; Roy, Manish; Swain, Bibhu P.

doi:10.1007/978-981-15-8307-0_12

Cited by 6 publications

(5 citation statements)

References 65 publications

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“…At lower deposition temperatures, Al-DLC films generally exhibit a more amorphous structure, which is associated with a random arrangement of carbon atoms and a mixture of sp 2 -and sp 3 -hybridized bonds (Bouabibsa et al, 2018). In contrast, as the deposition temperature increases, the film structure becomes more crystalline, with a higher degree of ordering and an increased fraction of sp 2 bonds (Ghadai et al, 2021). Such a structural transition affects the mechanical, optical, and electrical properties of the films.…”

Section: Discussionmentioning

confidence: 99%

“…The mechanical properties of the coating significantly affect the amount of Sp 2 and Sp 3 bonds present within the coating. The elastic modulus may also decrease with the increasing deposition temperature due to the transition from a more sp 3 -rich amorphous structure to a more sp 2 -rich crystalline structure (Ghadai et al, 2021). Therefore, it is imperative to control the deposition temperature and optimize it to achieve the desired mechanical properties for specific applications.…”

Section: Discussionmentioning

confidence: 99%

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A temperature-based synthesis and characterization study of aluminum-incorporated diamond-like carbon thin films

Ghadai,

Shanmugasundar,

Cepova

et al. 2023

Front. Mech. Eng.

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The present work deals with the study of various properties of aluminum (Al)-incorporated diamond-like carbon (DLC) thin films synthesized using the atmospheric pressure chemical vapor deposition (APCVD) technique by varying the deposition temperature (Td) and keeping the N2 flow rate constant. Surface morphology analysis, resistance to corrosion, nanohardness (H), and Young’s modulus (E) of the coatings were carried out using atomic force microscopy (AFM), corrosion test, scanning electron microscopy (SEM), and nanoindentation test, respectively. SEM results showed a smoother surface morphology of the coatings grown at different process temperatures. With an increase in process temperature, the coating roughness (Ra) lies in the range of 20–36 µm. The corrosion resistance of the coating was found to be reduced with a consecutive increase in the deposition temperature from 800℃ to 880℃. However, above 880℃, the resistance increases further, and it may be due to the presence of more Al weight percentage in the coating. The nanoindentation result revealed that H and E of the coating increase with an increase in the CVD process temperature. The elastic–plastic property indicated by H/E and H3/E2, which are also indicators of the wear properties of the coating, were studied using the nanoindentation technique. The residual stresses (σ) calculated using Stoney’s equation revealed a reduction in residual stress with an increase in the process temperature.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

A temperature-based synthesis and characterization study of aluminum-incorporated diamond-like carbon thin films

Ghadai,

Shanmugasundar,

Cepova

et al. 2023

Front. Mech. Eng.

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“…These coatings can be tailored to exhibit excellent adhesion, hardness, and wear resistance, prolonging the service life of the implant. For instance, diamond-like carbon (DLC) coatings can improve the tribological properties and corrosion resistance of metallic implants [77,78].…”

Section: Protective Nanocomposite Coatingsmentioning

confidence: 99%

An Overview of Enhancing the Performance of Medical Implants with Nanocomposites

Ramezani

Ripin

2023

J. Compos. Sci.

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Medical implants are essential tools for treating chronic illnesses, restoring physical function, and improving the quality of life for millions of patients worldwide. However, implant failures due to infection, mechanical wear, corrosion, and tissue rejection continue to be a major challenge. Nanocomposites, composed of nanoparticles or nanofillers dispersed in a matrix material, have shown promising results in enhancing implant performance. This paper provides an overview of the current state of research on the use of nanocomposites for medical implants. We discuss the types of nanocomposites being developed, including polymer-, metal-, and ceramic-based materials, and their advantages/disadvantages for medical implant applications. Strategies for improving implant performance using nanocomposites, such as improving biocompatibility and mechanical properties and reducing wear and corrosion, are also examined. Challenges to the widespread use of nanocomposites in medical implants are discussed, such as biocompatibility, toxicity, long-term stability, standardisation, and quality control. Finally, we discuss future directions for research, including the use of advanced fabrication techniques and the development of novel nanocomposite materials. The use of nanocomposites in medical implants has the potential to improve patient outcomes and advance healthcare, but continued research and development will be required to overcome the challenges associated with their use.

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“…The development of hard and highly wear-resistant materials is crucial for enhancing the longevity of mechanical components operating in demanding environments Ghadai et al, 2021a). To address this industrial requirement, coatings with superior hardness are often employed for their wear resistance capabilities (Vikram et al, 2020;Ghadai et al, 2021b). Carbon-based coatings, known for their exceptional performance in tribological applications, are increasingly adopted for mechanical parts such as bearings, gears, and various drivetrain components (Vikram et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of deposition temperature on the tribo-mechanical properties of nitrogen doped DLC thin film

Shanmugasundar,

Vanitha,

Logesh

et al. 2024

Front. Mech. Eng.

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The tribomechanical characteristics of diamond-like carbon (DLC) coatings are notably superior to other hard coatings, making them highly desirable for industrial applications. This study focuses on the synthesis of nitrogen-doped DLC (N-DLC) films through chemical vapor deposition (CVD) methods, with an emphasis on varying the deposition temperature. Comprehensive characterization techniques such as atomic force microscopy (AFM), scanning electron microscopy (SEM), and nanoindentation were employed to investigate the morphological and mechanical attributes of these coatings. The thickness of the films, measured using a Dektak profilometer, demonstrated an increase from 1.9 to 2.8 µm as the deposition temperature rose. Nanoindentation testing revealed that the film deposited at 900°C exhibited the highest hardness (H) and modulus of elasticity (E), measuring 21.95 and 208.3 GPa, respectively. Conversely, the film deposited at 1,000°C showed the lowest values, with H and E at 14.23a and 141.9 GPa, respectively. The H/E ratio of the coatings initially rose from 0.096 to 0.106 as the deposition temperature increased from 800°C to 900°C. However, for deposition temperatures exceeding 900°C the H/E ratio began to decline.

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Mechanical and Tribological Properties of Metal Incorporated DLC Thin Film

Cited by 6 publications

References 65 publications

A temperature-based synthesis and characterization study of aluminum-incorporated diamond-like carbon thin films

A temperature-based synthesis and characterization study of aluminum-incorporated diamond-like carbon thin films

An Overview of Enhancing the Performance of Medical Implants with Nanocomposites

Effect of deposition temperature on the tribo-mechanical properties of nitrogen doped DLC thin film

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