A TiN and TiN·Ti2Cu reinforced copper matrix composite layer was cladded onto a T3 copper substrate to improve the anti-wear performance of copper products by means of the nitrogen-shielded gas tungsten arc cladding method (N2-GTAC). Better than the traditional preparation method of TiN, the TiN particles in the cladding layer were in situ generated using N atoms of shielding gas and Ti atoms o...

Nickel-based coatings obtained by laser melting are broadly applied for surface modification owing to their high bond strength and exceptional wear resistance. cladding also extensively employed in temperature environments. In this paper, the research progress on improving resistance of nickel-based composite was reviewed introducing a hard ceramic phase, adding solid lubricants rare earth elem...

Cr12MoV has been widely used in the manufacture of stamping and drawing dies. In present study, an attempt was made to improve mechanical properties by laser cladding Ni60 alloy reinforced WC. X-ray diffraction (XRD), scanning electron microscopy (SEM), a microhardness tester, friction wear test prototype were analyze macroscopic morphology, microstructure, coating. The results showed that coat...

This paper numerically and experimentally investigates and demonstrates the design of an optofluidic in -plane bi-concave lens to perform both light focusing and diverging using the combined effect of pressure driven flow and electroosmosis. The concave lens is formed in a rectangular chamber with liquid core liquid cladding (L) configuration. Under constant flowrates, the performance of the le...

Using the Condon model to describe the dispersive behavior of optically active media, we analyze two different classes of waves in chiral optical fibers: surface and semileaky modes. Only when the cladding is chiral, semileaky modes do exist; accordingly, optical fibers with either chiral or achiral cores, but always with a chiral cladding, are considered. Two fundamental modes, corresponding t...