Electromagnetic flowmeters are used to measure the speed of water flow in water distribution systems. Corrosion problem in metal pipelines can be solved by cathodic protection methods. This paper presents a research on corruptive effects of the cathodic protection system on electromagnetic flowmeter depending on its measuring principle. Experimental measurements are realized on the water distri...

4.18.1 Historical Background 2747 4.18.2 Electrochemical Principles 2748 4.18.2.1 Aqueous Corrosion 2748 4.18.2.2 Cathodic Protection 2748 4.18.2.3 Oxygen Reduction 2749 4.18.2.4 Hydrogen Evolution 2750 4.18.3 Methods of Applying Cathodic Protection 2751 4.18.3.1 Impressed Current Method 2751 4.18.3.2 Sacrificial Anodes 2752 4.18.4 Proof of Protection 2753 4.18.4.1 Steel 2753 4.18.4.2 Other Met...

T considerable interest in the chemistry and applications of metal−organic frameworks (MOFs) has led to significant synthetic advances in this area, yet the details of the self-assembly process that give rise to these materials are still unclear. This is curious, but not unexpected: the crystallization of MOFs is difficult to study because their nucleation typically requires unpredictable induc...

ConspectusThe electrochemical conversion of sunlight by photoelectrochemical cells (PECs) is based on semiconductor electrodes that are interfaced with a liquid electrolyte. This approach highly promising, first, because it can be employed for the generation chemical fuel (e.g., H2) to store solar energy used on-demand generate electricity when sun not available. Second, seen as concept reminis...

In this study we explore the cutting performance of ZrAlN coatings. WC:Co cutting inserts coated by cathodic arc evaporated Zr1-xAlxN coatings with x between 0 and 0.83 were tested in a longitudinal turning operation. The progress of wear was studied by optical microscopy and the used inserts were studied by electron microscopy. The cutting performance was correlated to the coating composition ...

Sn-Pd electrocatalysts with a constant atomic ratio of 60 at.% Sn-40 Pd suitable for potential application in direct ethanol fuel cells were synthesized using novel two-step electrodeposition method. First, Sn was electrodeposited various forms dendrites, from spear-like and needle-like to individual fern-like dendrites network intertwined by varying the cathodic then performing at current dens...

The high corrosion resistance of stainless steel (SS) reinforcing bars is widely recognized. However, little information is available on how much cathodic current a passive SS rebar assembly could produce to support a local anode as corrosion eventually starts. The ability of SS to perform as a cathode would have a direct impact on the corrosion rate of the anodic region. To address this issue,...

Titanium and its alloys have good biocompatibility with body cells and tissues and are widely used for implant applications. However, clinical procedures place more stringent and tough requirements on the titanium surface necessitating artificial surface treatments. Among the many methods of titanium surface modification, electrochemical techniques are simple and cheap. Anodic oxidation is the ...

Indonesian Navy (TNI AL) is the main component for Maritime Security and Defence. Because of that, TNI AL needs Indonesian Warship (KRI) to covered Maritime area. The main requirement from KRI is fulfilled by demand. To pock of fuel demand from KRI at Naval Base, it needs a new pipeline of fuel distribution network system. The pipeline network system used for maximum lifetime must be protected ...