sp3 ratio exceeded 50% H ration is

sp3 ration

a-C:H was classified as the region where hydrogen was introduced into a-C

sp3 ratio exceeded 50% H ration is high

CrN-doped DLC (Chromium Nitride-doped Diamond-Like Carbon) is a type of thin film coating that combines the properties of DLC and chromium nitride. DLC is a carbon-based coating known for its hardness, low friction, and high wear resistance, while chromium nitride is a ceramic material with excellent thermal stability and chemical resistance. By incorporating chromium nitride into the DLC matrix, the resulting CrN-doped DLC coating can offer enhanced performance in various applications. The addition of chromium nitride in DLC films can modify their properties in several ways: 1. Hardness and Wear Resistance: The presence of chromium nitride increases the hardness and wear resistance of the DLC coating. This makes it suitable for applications where the coating needs to withstand abrasive or erosive forces. 2. Friction and Lubricity: DLC coatings already have low friction properties, but the addition of chromium nitride can further reduce friction and improve lubricity. This can be beneficial in applications where reduced friction and improved sliding properties are required. 3. Thermal Stability: Chromium nitride provides excellent thermal stability, allowing the CrN-doped DLC coating to withstand high temperatures without significant degradation. This makes it suitable for applications involving high-temperature environments. 4. Chemical Resistance: Chromium nitride enhances the chemical resistance of DLC coatings, making them more resistant to corrosive substances and chemical reactions. This can be advantageous in environments where the coating may come into contact with aggressive chemicals or corrosive agents. Applications of CrN-doped DLC coatings can be found in various industries, including automotive, aerospace, cutting tools, molds, biomedical devices, and more. The combination of hardness, low friction, wear resistance, thermal stability, and chemical resistance makes CrN-doped DLC a versatile and desirable coating for many demanding applications.

CrC-doped DLC refers to the deposition of chromium carbide (CrC) nanoparticles within a diamond-like carbon (DLC) matrix. DLC is a thin film coating composed primarily of carbon, which exhibits properties such as high hardness, low friction, and excellent wear resistance. By incorporating CrC nanoparticles into the DLC structure, the resulting material combines the desirable characteristics of both materials. The process of CrC-doped DLC deposition typically involves physical vapor deposition (PVD) or chemical vapor deposition (CVD) techniques. In PVD, a target containing chromium and carbon is bombarded with high-energy ions, causing atoms to be ejected from the target and deposit onto the substrate as a thin film. CVD involves the reaction of precursor gases containing chromium and carbon in a high-temperature environment to form a solid coating on the substrate. The addition of CrC nanoparticles to DLC offers several advantages. Chromium carbide provides increased hardness and wear resistance, enhancing the durability and lifespan of the DLC coating. It also improves the material's thermal stability and chemical resistance, making it suitable for applications in harsh environments. CrC-doped DLC coatings find applications in various industries, including automotive, aerospace, cutting tools, and medical devices. In automotive and aerospace applications, the coatings can be used to reduce friction and wear on engine components, resulting in improved fuel efficiency and increased lifespan. In cutting tools, the enhanced hardness and wear resistance of CrC-doped DLC coatings enable them to withstand high-speed machining and extend tool life. In the medical field, these coatings can be utilized for biocompatible implants to reduce friction and wear, thereby enhancing the performance and longevity of the implants. Overall, CrC-doped DLC combines the desirable properties of DLC and chromium carbide, resulting in a versatile coating with superior wear resistance, hardness, and thermal stability, making it suitable for a wide range of industrial applications.

The statement you provided describes a study that focuses on investigating the microstructure, electrochemical properties, and tribocorrosion behaviors of a CrCN nanocomposite coating with varying carbon content. Microstructure refers to the arrangement, distribution, and characteristics of the materials at a microscopic level. In this study, the researchers are interested in examining the microstructure of a coating composed of chromium carbonitride (CrCN) with the addition of carbon. By altering the carbon content within the coating, they aim to understand how it affects the arrangement and distribution of the different components in the coating at the microstructural level. Electrochemical behavior refers to the interaction between the coating and an electrolyte solution. By studying the electrochemical properties of the CrCN nanocomposite coating, the researchers aim to evaluate its corrosion resistance and how the varying carbon content influences its performance in different electrochemical environments. Tribocorrosion behavior refers to the combined effect of mechanical wear (tribology) and corrosion that occurs when a material is subjected to both mechanical forces and corrosive environments simultaneously. The researchers aim to assess how the CrCN nanocomposite coating with different carbon contents performs under tribocorrosion conditions. This evaluation helps determine the coating's resistance to wear and corrosion when it is subjected to frictional forces in corrosive environments. By conducting experiments, measurements, and analyses, the study aims to establish correlations between the carbon content, microstructure, electrochemical behavior, and tribocorrosion performance of the CrCN nanocomposite coating. The findings can provide insights into the relationship between the composition of the coating and its properties, guiding the development and optimization of coatings for applications where wear resistance, corrosion resistance, and tribocorrosion resistance are critical factors.

In this study, the anti-bacterial performance of modified diamond-like carbon (DLC) coatings with Si and F was investigated and compared with standard DLC coatings and stainless steel using Klebsiella pneumoniae as test bacterium. The experimental results indicated that the F and Si doped DLC coatings reduced the surface energy and improved anti-bacterial ability of DLC coatings. The extended DLVO theory was used to calculate the interaction energy between the coatings and the bacterium. The anti-bacterial mechanism was explained using the extended theory.

10.1016/J.MATLET.2020.128645

Ce, Cerium (Cu, Ce)/Ti co-doping

Boron carbide

The adhesion and hardness of DLC film improved significantly by W doping. -hardness -adhesion - Besides, the deposition rate and wear resistance also improved.