Güncel Gönderiler: Malzeme Bilimi ve Teknolojileri
Toplam kayıt 76, listelenen: 21-40
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Production of rare earth element oxide powders by solution combustion: a new approach for recycling of NdFeB magnets
(Royal Society of Chemistry, 2022)NdFeB magnets are employed in various technological applications due to their outstanding magnetic properties, such as high maximum energy product, high remanence and high coercivity. Production of NdFeB has gathered more ... -
Recovery of rare earth elements from spent NdFeB-magnets: separation of iron through reductive smelting of the oxidized material (second part)
(MDPI-Multidisciplinary Digital Publishing Institute, 2022)This paper proposes a pyrometallurgical recycling method for end-of-life NdFeB magnets by oxidizing them in air and subsequently smelting them. The smelting process enabled the recovery of rare earth elements (REEs), ... -
Recovery of rare earth elements through spent NdFeB magnet oxidation (first part)
(MDPI-Multidisciplinary Digital Publishing Institute, 2022)Due to their remarkable magnetic properties, such as a high maximum energy product, high remanence, and high coercivity, NdFeB magnets are used in a variety of technological applications. Because of their very limited ... -
Tension-compression asymmetry of quadruple CuCoNiBe alloys processed by high-temperature multi-pass equal channel angular pressing (ECAP)
(Walter de Gruyter, 2022)Among copper alloys, the precipitation (age) hardening quadruple CuCoNiBe alloys due to their superior mechanical properties in terms of the highest strength and elasticity achieved by peak aging have been used over the ... -
Assessment on the stable and high capacity Na-Se batteries with carbonate electrolytes
(Wiley, 2022)Factors affecting proper functioning of Na-Se system are investigated focusing on the polyselenide formation in ether- and carbonate-based electrolytes. To do so, Se cathode is prepared by ball milling with commercial ... -
Effect of severe plastic deformation on the precipitation kinetics and the properties of CuCoNiBe alloys
(Elsevier, 2022)The effect of the precipitation hardening by means of the conventional heat treatment and the combined thermomechanical treatment (i.e., equal channel angular pressing (ECAP) with subsequent aging) on the electrical ... -
Hydrometallurgical recycling of waste NdFeB magnets: design of experiment, optimisation of low concentrations of sulphuric acid leaching and process analysis
(Taylor & Francis, 2022)Efficient recovery of rare earth elements (REEs) from scrap NdFeB magnets is a significant requirement for a circular economy. Therefore, the development of a cost-effective and environmentally friendly leaching process ... -
Effect of water absorption and hydroxyapatite addition on mechanical and microstructural properties of dental luting cements
(Walter de Gruyter, 2022)In recent years, dental cements have gained more and more importance due to the increasing clinical expectations. They are used as restorative materials and as materials providing critical functions such as chemical and ... -
Development of biomimetic hydroxyapatite containing dental restorative composites
(Springer, 2022)The aim of the study was to evaluate the incorporation effect of biomimetic hydroxyapatite (BHA) particles on the mechanical properties of experimental dental composites. Two experimental composites were produced from the ... -
Numerical and experimental formability analysis of aluminum 3105 sandwich panels produced by continuous hot-press forming
(Walter de Gruyter, 2022)Aluminum-plastic composites as building materials are widely used for different construction purposes, for instance, for exterior wall cladding, ventilated facades, and interior decoration of buildings, in billboards, ... -
Mechanical and wetting properties of coated paper sheets with varying polydimethylsiloxane molecular masses in the coating formulation
(Scientific & Technical Research Council Turkey-TUBITAK, 2022)Coated paper sheets were prepared by immobilizing a thin coating layer of cross-linked polydimethylsiloxane (PDMS) and inorganic particles onto Whatman filter paper Grade 1 (WFP) substrates. Several coatings that differed ... -
The effect of preceramic soldering on fracture resistance of 4-unit zirconia fixed dental prostheses
(Wiley, 2022)Purpose Preceramic soldering of zirconia may deliver better fitting restorations. However, there is not sufficient evidence regarding the influence of preceramic soldering of zirconia restorations on mechanical strength. ... -
Investigation of the effect of light fastness on the color changes of maps prepared by electrophotographic digital printing
(Walter de Gruyter, 2022)In this study the prints were made on paper substrates, which were thought as map substrate alternatives, with 3 different surface properties at 1200 dpi by using the electrophotographic printing system. Color and gloss ... -
Investigation of Cu whisker growth by molecular beam epitaxy
(Walter de Gruyter, 2021)There is a trend towards smaller and smaller structures (nanostructures/miniaturization) which is well known in microelectronic, energy and semiconductor applications. Nanoengineering is expected to lead to significant ... -
Hybrid paper sheets with improved barrier properties
(Scientific & Technical Research Council Turkey-TUBITAK, 2021)Hybrid paper sheets were prepared by applying a thin coating layer of cross-linked polydimethylsiloxane (PDMS) and inorganic particles onto Whatman Grade 1 filter paper substrates. Several coatings with different inorganic ... -
Superelastic anisotropy and meso-scale interface regions in textured NiTi sheets
(Gazı University Faculty Engineering Architecture, 2021)Typical manufacturing processes of NiTi shape memory alloys (SMAs) involve drawing and rolling operations leading to crystallographic texture and superelastic anisotropic behavior. Therefore, an in-depth understanding of ... -
Development of a nonwetting coating for packaging substrate surfaces using a novel and easy to implement method
(Walter de Gruyter, 2021)This study is about preparing different paper substrates with chemically stable hydrophobic and superhydrophobic surface coatings through spraying a mixture of poly(dimethylsiloxane) (PDMS) and inorganic particles. The ... -
NdFeB Magnets recycling process: an alternative method to produce mixed rare earth oxide from Scrap NdFeB Magnets
(MDPI, 2021)Neodymium iron boron magnets (NdFeB) play a critical role in various technological applications due to their outstanding magnetic properties, such as high maximum energy product, high remanence and high coercivity. Production ... -
Tb-2(WO4)(3)@N-GQDs-FA as an efficient nanocatalyst for the efficient synthesis of beta-aminoalcohols in aqueous solution
(Elsevier, 2021)In the current study, Tb-2(WO4)(3)@N-(GQDs) modified with folic acid (FA) was synthesized during the chemical reaction of terbium(III) tungstate nanoparticles with nitrogen doped graphene quantum dots (N-GQDs) and introduced ... -
Superhydrophobic polymer surfaces: preparation, properties, and applications
(Smithers Rapra Technology, 2016)Surface properties have critical roles in determination of the durability and overall performance of polymeric materials for applications in many fields. Recent investigations on naturally superhydrophobic surfaces such ...
