Hydrogen energy utilization from water splitting relies on the successful development of earth-abundant, efficient, and stable electrocatalysts for oxygen evolution reaction (OER). Herein, novel cobalt carbonate hydroxide nanorods are synthesized by facile low-temperature precipitation. The nano...

We present the time-dependent synthesis of cobalt hydroxide carbonate nanorods by hydrothermal method with a systematic increase of different parameters such as specific surface area and specific capacitance as a function of different synthesis time. Morphological characterization of the cobalt ...

The microstructure and mechanical properties of aluminum and brass welding joints were investigated. The microscopy image revealed that the welding interface was flat in the case of using lower laser pulse energy. When the laser pulse energy was higher than 1200 mJ, the wavy interface and local ...

An alloy that is exposed to cavitation may experience mechanical cavitation damages as well as accelerated corrosion. In the present paper, the evolution of corrosion erosion behavior of brass samples (CuZn38Pb3) during continuous exposure to ultrasonic cavitation in a salt solution (NaCl) was i...

This work investigates the formation mechanism of the third bodies for brass under lubricated conditions. A tribometer based on on-line and radio-nuclide technique (RNT) techniques is used to perform the sliding experiment of brass versus steel. The microstructure, micro-hardness and chemical co...

Commercial brass OT60 is commonly used for food processing. The inhibition of its dezincification in presence of the biofilm forming Pseudomonas fluorescens was documented in this work. Electrochemical polarizations, Electrochemical Impedance Spectroscopy and post treatment analyses were carried...

This paper is concerned with the effect of laser shock peening on micro-hardness and microstructure of brass. In order to study the plastic deformation behaviors of brass, laser shock peening with 1, 2, and 3 impacts at pulse energy of 6.5 J were performed in this experiment respectively. The mi...

This article describes frictional and electrical contact behaviors of electroplated brass under fretting conditions. Fretting tests using a crossed cylinder configuration are conducted. Cylindrical-type specimens are made of tin-plated and gold-plated brass. The ratio of the maximum tangential f...

The accelerated corrosion behavior of copper T2 and brass H62 exposed in simulated Nansha marine atmosphere for different periods were investigated by weight loss method, SEM, XRD and potentiodynamic polarization measurements. The results indicate that copper T2 and brass H62 underwent severe co...

This paper is focused on the synthesis of brass–AlN composite based on powder metallurgy technique. By varying the weight percentages (0, 4, 8, 12) of aluminium nitride (AlN) as reinforcement. The high energy ball milling are used the brass-AlN composite. The green cylindrical compacts were pro...

The leaded brasses show high machinability and atmospheric corrosion resistance. Hence, they are being used in different applications such as machine parts, valves, fittings etc. Besides, they can serve as radiation shields as they contain lead and their radiation shielding properties were not i...

This paper presents the failure analysis of the lead-free brass valve bodies that had been installed in plumbing sanitary equipment. Leakage points were found adjacent to the brazing location. Visual inspection, stereomicroscope and scanning electron microscopy coupled with an energy dispersive ...

Joe Capus, MPR consulting editor, looks back on the contributions of Henry Bessemer.

The miscibility of W in Sn and Cu is extremely poor. Sintering of W–bronze composites to their full density is proved to be difficult. To tackle this problem, the ball milling process of the W–bronze powder mixture proposed in this study was split into two steps. In the first step, the softnes...

In the present research work, [82Cu4Si14Zn]100-x – x wt% B4C (x = 0, 3, 6, 9, and 12) nanocomposite powders had synthesized by mechanical alloying (MA). The MA process had carried out in a single vial high-energy planetary ball mill with the ball-to-powder ratio of 10:1 for 20 h. The results ha...

The aim of this work is to fabricate bronze components by metal injection moulding (MIM) studying the possibility of changing partially or totally the gas atomised powder by water atomised ones that are cheaper than the former. In order to carry out this study, a bronze 90/10 gas atomised spheri...

The ability to achieve close control of porosity and pore size is the main reason that porous metallic materials are prepared by powder metallurgy. Bronze has widespread applications in this field. This investigation aimed to study the effect of processing conditions on the porosity of bronze. I...

In this study jet milling has been used as a novel method to recycle bronze machining chips into bronze powder suitable for making powder metallurgy components. This method has been compared with ball milling process to make an assessment of its efficiency as a recycling route. The size reductio...

A unique assemblage of tools dating to the Middle Bronze Age was uncovered at Megiddo (Israel). The assemblage included pestles, pounding stones, many worked stones and various colored materials. We used mainly Fourier Transform Infrared Spectroscopy (FTIR) in order to identify the bulk material...

In this paper, the effect of the gas flow and pressure on the powder flow, as well as the effect of the conditions of laser cladding on the microstructure, phase composition, microhardness and tribological behavior of an Al-Fe powder bronze coating, is studied. The features of single tracks, sin...