Materials Literature
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For years, it has been the aim to improve the efficiency of thermal power plants by increasing the steam temperature. Therefore, appropriate steels and welding consumables are needed. Latest developments in cast materials have shown that the boron-alloyed 9Cr-1.5Mo-1Co steel called CB2 enables steam temperatures up to…
Femtosecond x-ray powder diffraction maps electron density in response to a strong electric field. In LiH, electron correlations lead to an electron transfer from Li to H while NaBH4 shows a transfer from BH 4 − to Na+.
The article presents the results of design research authors for converting sliding vane pumps marine high-speed diesel engines to improve their efficiency and reduce energy losses in operation. For this proposed new design of the friction stator plate to convert sliding friction into rolling friction, due to the insta…
Significance and Use 5.1 This test method determines the amount of water absorbed by a backing material. Water absorption by the backing may affect sealant performance. 5.2 This test method is also useful when designating proper storage of back up materi
Inductively Coupled Impulse Sputtering (ICIS) removes the need for a magnetron, while delivering equal or higher ion-to-neutral ratios compared to other ionised PVD technologies such as High Power Impulse Magnetron Sputtering (HIPIMS).This is especially advantageous for the sputtering of magnetic materials, as these w…
Abstract Ugima 4305 HM is general-purpose, corrosion resistant austenitic stainless steel with improved machinability. Its corrosion resistance is typical of an austenitic steel and is similar to that of the 4305 or 303. This datasheet provides information on composition, physical properties, elasticity, and tensile p…
The composite binder was prepared by adding a small amount of slag and sodium hydroxide to original flue gas desulphurization gypsum.The Influence of sodium hydroxide on the properties and structure of the composite materials with 70 % flue gas desulphurization gypsum and 30 % slag was discussed.The results showed tha…
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IN718 alloy has excellent mechanical properties and it is the most widely used superalloy in the world. The defect and grain size distribution significantly affect the performance of the material, therefore macrostructure evaluation is a very critical work to guarantee the quality of the product. The widely used etcha…
The C-F codoped TiO2 catalysts were prepared by a simple CF4 plasma treatment. X-ray diffraction, UV-visible spectroscopy, photoluminescence and X-ray photoelectron spectroscopy were used to characterize the prepared TiO2 samples. The visible light absorption was obvious improved by C-F codoping. The doping amounts of…
Americanae nace como un proyecto conjunto que surge dentro de la Red Europea de Información y Documentación sobre América Latina (REDIAL), y que ha afrontado la Biblioteca de la Agencia Española de Cooperación Internacional para el Desarrollo (AECID). Esta nueva biblioteca virtual hace más accesibles los libros digita…
Shape memory material (SMM) is a type of smart material, which after being severely and quasi-plastically deformed, is able to return its original shape at the presence of the right stimulus. This feature is known as the shape memory effect (SME). Great attention has been attracted on this feature ever since it was di…
Significance and Use 5.1 This test method may be used for material development, characterization, design data generation, and quality control purposes. 5.2 This test method is specifically appropriate for determining the modulus of advanced ceramics that
The electrical transport properties of topological insulators Bi2Te3, Bi2Se3 and related specific structures have been investigated in this thesis. Three topics of topological insulators are systematically studied, including the electron-electron interaction in antidot nanostructured Bi2Te3 thin films, the interface e…
Selol is an oily mixture of selenitetriacylglycerides that was obtained as a semi-synthetic compound containing selenite. Selol is effective against cancerous cells and less toxic to normal cells compared with inorganic forms of selenite. However, Selol’s hydrophobicity hinders its administration in vivo . Therefore,…
In this paper, crystal of EuxCa1-xFeyMn1-yO3 (1/4 x 1/2, 1/4 y 1/2) has been synthesized with sol-gel method, in which gel is sintered in 750 C with muffle furnace and then grounded into powders. The structure of the synthesized EuxCa1-xFeyMn1-yO3 has been studied using X-ray powder diffraction and the results reveal…
The front electrode of a solar cell must form an ohmic contact through the etching of the antireflection coating layer of a Si-wafer and glass frit helps the formation of an ohmic contact in the materials of the front electrode of a solar cell. Some studies have reported on the sintering mechanism of glass frit at the…
Front Cover
The impressive history of hardmetals starts with the Schröter Patent and is then followed by the first hardmetal company, Krupp-WIDIA. Metallwerk Plansee has also played an important part in the search of drawing dies for tungsten wires and later as one of the important hardmetal manufacturers besides Kennametal in US…
In the present era synthesis of nano-material with specific size and morphology has gained importance due to its use in various fields. Zinc oxide is n-type semiconductor and has direct wide band gap of 3.37ev and large exciton binding energy of 60 mev at room temperature 1,2 . It is used in gas sensors, near UV emiss…