Adhesion characteristics of nano- and micro-crystalline diamond coatings: Raman stress mapping of the scratch tracks

Enhancement in Tribological and Mechanical Properties of Cemented Tungsten Carbide Substrates using CVD-diamond Coatings

“…3 (a, b) respectively, sharp and strong peaks of cubic diamond coatings were observed at (111) crystal and (220) crystal planes at diffraction angles of 44° and 75.5° respectively for both coatings, along with the tungsten carbide (WC) peaks. These observed peaks confirm the crystallinity of both the coatings [18]. The diamond peaks of MCD coating appears slightly higher than that of NCD coating, which clearly confirm that the grain sizes are different.…”

“…For NCD coating, critical adhesive failure was observed at ~20 N under dynamic loading conditions. However, this adhesive failure event in MCD coating is observed at a much higher normal load of ~42 N. In this aspect, MCD coating exhibits superior scratch resistance due to its high hardness and crystallinity [18].…”

Functionalization of Hydroxyapatite Ceramics: Raman Mapping Investigation of Silanization

“…However, none of them give an overview of the chemistry of the substrate surface, i.e., spatial repartition and coverage of the ceramic surface by organosilane molecules. 2D Raman mapping is a relevant technique to analyze large samples and to access various kinds of information like mechanical stresses in nanomaterials [29,30], crystallographic orientations [31,32], chemical compositions (pigment [33], algae [34]) or to study corrosion phenomena [35], etc. Some studies are also available in the health domain for drug delivery analysis [36][37][38] or characterization of bone composition [39][40][41].…”

Growth of micro- and nanocrystalline dual layer composite diamond films by microwave plasma CVD: Influence of CO2 concentration on growth of nano-layer

“…For example, the deposited diamond film with nano-crystals suffers from poor adhesion due to trapped high non-diamond carbons [8] and a large number of grain boundaries [9]. But well crystallized MCD film shows superior adhesion characteristics [10].…”