Graphene nano platelets (GNP) have several attractive properties, including excellent lubricity that can be used to develop wear-resistant coatings. Thermally sprayed chromium carbide–nickel (Cr3C2–NiCr) coatings are widely employed impart wear resistance engineering components. This work attempts improve the of high velocity air fuel (HVAF) Cr3C2–NiCr by incorporating GNP using a hybrid approa...

The results of investigation the diffusion interaction kinetics at boundary explosion welded Ti-NiCr system compositions during heat treatment are presented. structure, chemical and phase composition formed zones also studied. It is shown that layered zone a temperature below eutectoid transformation. Diffusion consists solid solutions based on Ti2Ni, TiNi, TiNi3 intermetallic compounds, as wel...

Changes in the elastic properties of brain tissue have been correlated with injury, cancers, and neurodegenerative diseases. However, discrepancies reported moduli are persistent, spatial inhomogeneities complicate interpretation macroscale measurements such as rheology. Here we introduce needle induced cavitation rheology (NICR) volume-controlled cavity expansion (VCCE) facile methods to measu...

The adhesive monomer, Clearfil New Bond, was used to enhance the bond strength between orthodontic brackets and primary molars, premolars, and NiCr crowns. Twenty specimens of each had this dental adhesive applied according to the manufacturer's instructions in addition to a chemically cured composite material. The remaining specimens (20 each) were bonded without the adhesive monomer. Shear bo...

In this research, the electrochemical evaluation of NiCr/Ti laser cladded coatings in simulated polymer electrolyte membrane fuel cells (PEMFCs) environment was investigated. The Laser Cladding technique used to develop protective on mild steel substrate using NiCr-based powders mixed with 12.5, 15, 17.5 and 20 wt.% Ti additions. samples were tested at room temperature Na2SO4 0.1M + 0.1 ppm F-....

Freshly coated aluminum mirrors have excellent reflectivity at far ultraviolet wavelengths. However, reflectivity rapidly degrades when the mirror surfaces are exposed to atmosphere. In order to avoid this problem, freshly coated aluminum surface can be protected by over-coating of a removable volatile protecting coating. This protecting coating can be re-evaporated by controlled heating or by ...

This paper is concerned with the investigation of the capability of Detonation sprayed Ni-Cr And Al2O3 13TiO2 coatings to improve the tribological and mechanical properties of grey cast iron. The present study describes and compares the mechanical and tribological properties of NiCr and Al2O3 13TiO2 D-Sprayed coatings deposited on two different substrates (GI250 and GIHC) Experiments using a tr...

A Cr3C2-Al2O3-NiCr composite coating was prepared on an INCONEL600 alloy surface through high-velocity oxygen-fuel spraying followed by further processing high-energy shot peening to create the coating. The microhardness and friction properties of are analyzed a tester reciprocating tester. microscopic structure wear trace were scanning electron microscope (SEM). element distribution energy-dis...

Abstract In the first part of paper, effect mechanical treatment particles reacting Ti + C Me (Me = NiCr or Co) mixtures on process self-propagating high-temperature synthesis (SHS) is investigated. It shown that as a result SH-synthesis in free burning mode, metal-ceramic sinter high porosity formed, which easily destroyed by action. An increase volume fraction metal binder (NiCr leads to redi...