Yayın tarihi için Malzeme Bilimi ve Teknolojileri listeleme
Toplam kayıt 76, listelenen: 41-60
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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 ... -
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 ... -
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 ... -
In-situ photochemical synthesis and dielectric properties of nanocomposite thin films containing Au, Ag and MnO nanoparticles
(Elsevier, 2021)Thioxanthone-Anthracene (TX-A) was used as a one-component Type II photoinitiator for the photopolymerization of PEGMEA/PEGDA monomer mixture consisting of AgNO3, HAuCl4 and MnCl2 metallic salts. In this study, we have ... -
Synthesis of one-component type II dithioxanthone-disulfide photoinitiator and investigation of photophysical and photochemical properties
(Elsevier, 2021)Herein, we report the successful synthesis of dithioxanthone-disulfide [TX-S-](2) as a new one-component type II photoinitiator. Photophysical properties of [TX-S-](2) in terms of fluorescence and phosphorescence properties ... -
Effect of repolishing on the surface roughness and color stability of air-abraded resin composites
(Original ArticleInternational Dental Research, 2022)Aim:Air powder polishing (APP) can cause roughness on composite surfaces, and consequently the color change that occurs over time affects the aesthetic negatively. Here, we aim to investigate the effect ... -
Morphological, microstructural and photocatalytic characterization of undoped and Ni, Co doped Fe2O3 particles synthesized by sonochemical method
(Scientific & Technical Research Council Turkey-TUBITAK, 2022)In this study, an abundant and eco-friendly photocatalytic material, Fe2O3 particles were synthesized by sonochemical method. Morphological and microstructural investigations of synthesized undoped and Ni, Co-doped Fe2O3 ... -
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 ... -
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, ... -
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), ... -
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. ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ...