In present the improved demand of lightweight materials by high strength to weight ratio in the aerospace and automotive industries has managed to the development and custom of Al-alloy-based composites. In this paper an effort has been prepared the Al6082+Cu+Zn composite material and the optimization of CNC milling process parameters for two different work materials of compositions are Al6082 ...

This study was undertaken to investigate the effects of Cu and solution heat treatment on the microstructure and hardness of cast Al-Al4Sr metal matrix composite. Different amounts of Cu (0.3, 0.5, 1, 3 and 5 wt.%) were added to the composite. Specimens were heat treated at 500 °C for 4 hours followed by water quenching. Microstructural studies were assessed by the use of optical microscope, sc...

The effective dielectric function of metal-dielectric composites consisting of spherical particles randomly distributed in a matrix is numerically investigated. The study, based on the spectral density theory, shows that local field fluctuations may critically affect the composite performance for metamaterial applications. It appears that randomness significantly modifies the effective dielectr...

Manufacturing complex metal matrix composite (MMC) structures by laser powder-bed fusion (LPBF) could unleash their full potential but is difficult due to the presence of reinforcement. Unmelted particles negatively affect pool dynamics, cause critical spatter ejections, and form printing defects. In this work, taking copper (Cu) / diamond (D) as an example for its prospective thermal managemen...

Abstract. Mild steel has considerable importance in the field of engineering due to its high strength, good mechanical properties and low cost. However, application is restricted some industries where wear failure considered as major problem. Wear attacks on moving components from upper surface, which proves often a surface phenomenon. Many researchers have used gas tungsten arc (GTA) cladding ...

surements can be performed at much reduced exposure times THE load-bearing capacity of a metal matrix composite and in small diffracting volumes, thus allowing for investi(MMC) is dictated by the load transfer occurring from the gating the time dependenceof lattice strains and for mapping compliant, soft matrix to the stiff, hard reinforcements. such strains with a lateral resolution of a fract...

BACKGROUND AND AIM: Nowadays, resin composites are the preferred material for direct posterior restorations. The present study was conducted to assess the performance and problems of general dental practitioners during and after posterior direct composite restorations in Kerman, Iran.METHODS: 160 general dentists (63% men and 37% women) participated in this analytic-descriptive study. Data were...

In this study, metal matrix composites (MMC) of a CoCrNi medium entropy alloy (MEA) reinforced with titanium nitride (TiN) nano-sized particles were designed for production by laser-based powder bed fusion (LB-PBF). Two different additions, 0.5 wt% and 5 TiN nano- sized particles, mixed using tumbling ball milling, respectively. The results suggest that although the morphology is not significan...