The layered two-dimensional (2D) materials, e.g., the well-known graphene, transition metal dichalcogenides, and topological insulators, have attracted great interest of researchers from fundamental research as well as industries owing to their intriguing properties in a number of aspects. In practical applications, the efficient modification of the features of 2D materials is compelling and essential to achieve desired functionalities. Ion implantation has been successfully applied to synthesize graphene. The most exotic advantage of ion beam technology is that it offers distinct options of energetic beams, which has recently shown the unique capability to modify and tailor the properties of versatile 2D materials. To name a few, the energetic ion beams could implement the surface morphology or layer-to-layer structural engineering of 2D materials. At the microcosmic level, the introduction of ion beam induced defects and intentional doping of specific ions are the basis of tailoring properties of 2D mat...

Ion beam modification of two-dimensional materials: Characterization, properties, and applications

http://repositorium.sdum.uminho.pt/bitstream/1822/57712/1/Superhard%20CrN-MoN%20coatings%20with%20multilayer%20architecture.pdf

Superhard CrN/MoN coatings with multilayer architecture

Elastocapillary phenomena involving elastic deformation of solid structures coupled with capillary effects of liquid droplets/films can be observed in a diversity of fields, e.g., biology and microelectromechanical systems (MEMS). Understanding the physical mechanisms underlying these phenomena is of great interest for the design of new materials and devices by utilizing the effects of surface tension at micro and nano scales. In this paper, some recent developments in the investigations on elastocapillary phenomena are briefly reviewed. Especially, we consider the deformation, adhesion, self-assembly, buckling and wrinkling of materials and devices induced by surface tensions or capillary forces. The main attention is paid to the experimental results of these phenomena and the theoretical analysis methods based on continuum mechanics. Additionally, the applications of these studies in the fields of MEMS, micro/nanometrology, and biomimetic design of advanced materials and devices are discussed.

On elastocapillarity: A review

Optimizing the tribological behavior of tantalum carbide coating for the bearing in total hip joint replacement

Simultaneously achieving superior mechanical and tribological properties in WC/a-C nanomultilayers via structural design and interfacial optimization

Microstructure, mechanical and tribological properties of WC/a-C:H coatings deposited by cathodic arc ion-plating

We present few-layer graphene synthesis by negative carbon cluster ion implantation with C1, C2, and C4 at energies below 20 keV. The small C-clusters were produced by a source of negative ion by cesium sputtering with medium beam current. We show that the nonlinear effect in cluster-induced damage is favorable for graphene precipitation compared with monomer carbon ions. The nonlinear damage effect in cluster ion implantation shows positive impact on disorder reduction, film uniformity, and the surface smoothness in graphene synthesis.

Nonlinear damage effect in graphene synthesis by C-cluster ion implantation

Properties of CrN/Mo2N nano-multilayer films synthesized by multi-cathodic arc ion plating system

Ti0·7Al0.3N/MoN multilayered hard coatings were synthesized on Si (100) surface by physical vapor deposition and the bilayer period was estimated to be 90 nm by Rutherford backscattering spectroscopy (RBS) using 2.42 and 1.52 MeV Li2 + ion beams. The ion beam analysis was extended to Non-RBS for quantitative detection of light elements in ZnOS:C epilayers which were deposited on sapphire substrates by pulsed laser deposition and implanted with 50-keV carbon ions to the dose of 5 × 1014 atoms/cm2. The implanted samples were annealed by an excimer laser at different powers and the carbon dopants were successfully profiled by Non-RBS based on the resonance reaction C(p, p)C using 1.7 MeV protons. code: CO12.

Hierarchical film formation and structural characterization using MeV-ion beams

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Papers

Microstructure, mechanical and tribological properties of WC/a-C:H coatings deposited by cathodic arc ion-plating

Nonlinear damage effect in graphene synthesis by C-cluster ion implantation

Properties of CrN/Mo2N nano-multilayer films synthesized by multi-cathodic arc ion plating system

Hierarchical film formation and structural characterization using MeV-ion beams