Iris Publishers Material Science Open Access Journal

The polarization potential (РР) is regarded as the main criterion of corrosion protection of metal structures in conducting media. However, the potential between the reference electrode and the metal of the protected structure is measured with a voltmeter and contains, in addition to the polarization component, the Ohmic drop of the voltage. But, only the polarization of the surface causes the effect of cathodic protection. Therefore, the Ohmic component should be removed from the measured potential difference for the precise control of the protected structure. To solve the problem of measuring PP is known methods of compensating, relaxation, auxiliary electrodes and calculations, which have disadvantages. Read More About This Article: https://irispublishers.com/mcms/fulltext/measuring-of-polarization-and-ohmic-potentials-for-the-diagnostics-of-corrosion-protection-of-the-metal-structures.ID.000503.php Read More Iris Publishers Google Scholar Articles: https://scholar.google.com/citat...

The non-stoichiometric tungsten oxide nanostructure, WO2.9 (W25O73, dark blue color) is an efficient electrocatalyst for hydrogen evolution in acidic water, which has shown promise as an alternative to platinum (Nature Communications 2015, 6, 8064(1-7)). Generally speaking, the oxygen vacancies or oxygen deficiencies can affect the electronic band structure and enhance the conductivity. Blue tungsten oxide-based materials, WO2.8 (W5O14) are used as promising anode materials for lithium-ion batteries (Adv. Funct. Mater. 2018, 28, 1707500). And sea urchin-like WO2.7 (W18O49, purple color) nanowire can be used as a substrate material to magnify the substrate-analyte molecule interaction, leading to significant SERS response, even comparable to noble metals without ‘hot spots’. The extremely high electrocatalytic activity and SERS response can probably be attributed to the presence of oxygen deficiencies, either intrinsic or on the surface (Nature Communications 2015, 6, 7800(1-7)). Read M...

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Analysis of Fly Ash and Paramagnetic Nanoparticles with Hybrid Base Fluid Due to Applied Magnetic Dipole in a Stretching Sheet with Momentum Slip Condition: FEM Approach Material Science In this article, a comprehensive analysis is performed for fly ash and paramagnetic ( T a ) nanoparticles with a hybrid base and micro polar fluid with momentum slip conditions over a stretching sheet. With the aid of the similarity transformation, the PDEs obtained are transmuted in the nonlinear ODE system, after which the numerical simulation is performed with the finite element method. The effect of physical parameters on velocity, micro rotation, and temperature are analyzed graphically. Results reveal that the velocity boundary layer thickness for fly ash nanoparticles is higher than paramagnetic and thermal conductivity of paramagnetic is higher than fly ash nanoparticles. The paramagnetic nanoparticles are, therefore, the best coolant. The comparison of the finite element method with previous r...

  “Urban Mine” A Modern Source of Materials: Part I Battery Recycling Material Science Today world population increase and related economy expands are accompanied with important growth of substantial need for natural resources. Consequently, in order to sustain same level of economic activities a great amount of energy and resource are consumed [1]. The energy preoccupation linked to a potential “peak oil” introduces a strong actions on fuel saving and utilization of clean energy. In particular emerging of climate changing problematic and global warming issues from Kyoto protocol [2,3] with impact of greenhouse gases and CO2 are the most important challenges the last 3 decades. Within all resources and just after water and energy, in third position we have the metals. In other hand today, no doubt those industrial emerging segments such as s solar panel, wireless products, and e-mobility and wind turbines will have a great growth and demand. However almost all those equipment are...

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