The effects of graphene nano-platelet additions on the sliding wear of TiC-Ni3Al cermets

Advanced progress on the significant influences of multi-dimensional nanofillers on the tribological performance of coatings

“…As a common solid lubricant, a large number of tribological reports on graphene have demonstrated that graphene is also an effective reinforcement for CBCs. [194][195][196] Bai et al 197 reported the tribological behaviors of graphene-reinforced TiO 2 ceramic lms and indicated that the single-layer TiO 2 ceramic lms with 0.025 wt% graphene demonstrated the best tribological property at 100 °C. When the substrate was tightly bonded to the ceramic lm, the elasticity of the TiO 2 ceramic lm increased the contact area between the friction ball and the ceramic lm, reducing the friction.…”

Phase diagrams in alternative hard materials: Validation of thermodynamic simulation through high temperature x-ray diffraction, differential thermal analysis and microstructural characterization

“…Thus, in order to obtain a mechanical resistance comparable to hardmetals, the microstructure must be tailored to avoid the precipitation of the rim phase and attain a binary microstructure, resembling the one of traditional cemented carbides. This type of structures are known as CSS cermets, where the hard particles are composed by one single phase, as can be appreciated in Figure 1.8 [194][195][196][197]. It is worth noting the different contrast colours in the SEM micrographs of cermet and hardmetal ceramic/binder phases, given that the density of WC can be up to three times higher than cermet hard phases [141].…”