Showing papers in "Materials Letters in 2015"

TL;DR: In this paper, the main physical properties of ZnO nanoparticles synthesized for the first time by a completely green process using Agathosma betulina plant extract as an effective chelating agent are reported.

TL;DR: In this article, the crystal structure, microstructure, density, microhardness and mechanical properties of new AlNbTiV high entropy alloy were examined and the specific yield strength of the alloy was found to be comparable with strength of multiphase refractory high entropy alloys.

TL;DR: In this article, the authors investigated the wear properties of commercially pure titanium (CP-Ti) parts produced using selective laser melting (SLM) and casting, and they found that SLM-produced CP-Ti parts have martensitic (α΄) microstructure, whereas cast-produced PC-Ti samples exhibit plate-like (α)-microstructure.

TL;DR: In this article, the microstructure and phase composition of these composites were characterized by field emission scanning electron microscope (FESEM) and X-ray diffraction (XRD).

TL;DR: In this paper, high-dense bulk Cu-10Sn bronze specimens have been fabricated by selective laser melting (SLM) and their (micro)structure and mechanical properties have been investigated and compared with the corresponding material produced by casting.

TL;DR: In this paper, two-dimensional (2D) MXene Ti3C2 nanosheets are prepared by liquid phase exfoliation of layered Ti3AlC2 in aqueous solution of HF, followed by alkalization and calcination.

TL;DR: In this article, aqueous leaves extract of Skimmia laureola at room temperature was used to synthesize silver nanoparticles, which showed surface Plasmon resonance at around 460nm.

TL;DR: In this paper, the authors synthesize Urchin-like ZnO hollow spheres by a simple hydrothermal method and their electromagnetic and microwave absorbing properties were investigated using TEM images.

TL;DR: PCL loaded with TC shows the potential as promising substrate for drug delivery applications in biomedicine and healthcare.

TL;DR: In this article, a range of different short fibres added to a matrix of cellulose-modified gypsum powder was used to improve the bending strength of printed samples, which can lead to a collapse of large and fragile structures during removal from the powder bed and the following depowdering procedure.

TL;DR: In this article, ultrathin superhydrophobic and superoleophilic fibrous poly (vinylidene fluoride) membranes were prepared by means of electrospinning technique for the purpose of low-cost, high-efficiency water-oil separation.

TL;DR: In this paper, metal-organic framework Zr 6 O 4 (OH) 4 (BTC) 2 (HCOO) 6 (MOF-808) nanoparticles were successfully synthesized with a household microwave oven in less than 5min of irradiation time.

TL;DR: In this paper, a simple, eco-friendly and scalable method of obtaining graphene from dead camphor leaves (Cinnamomum Camphora) using one-step pyrolysis is reported.

TL;DR: In this paper, high pressure torsion and thermal annealing were applied to a face-centered cubic as-cast Al0.3CoCrFeNi high entropy alloy.

TL;DR: The authors applied an additive manufacturing technique involving the use of selective electron beam melting (SEBM), which can facilitate a high level of local process control and generate rapid solidification cooling rates.

TL;DR: In this paper, a facile hydrothermal solution reaction method was used to synthesize 3D MoS 2 microspheres with diameter of about 4μm using hexaammonium heptamolybdate tetrahydrate ((NH 4 ) 6 Mo 7 O 24 ) and thiourea as precursors.

TL;DR: In this article, selective laser melting was used to fabricate Mg-5.2Zn-0.5Zr components and the influence of element vaporization on formability, composition, microstructure, and mechanical performance of the final products was studied.

TL;DR: In this article, a self-template method was used to synthesize a core-shell ZnO@zeolitic imidazolate frameworks-8 (ZnO/ZIF-8) nanospheres.

TL;DR: In this article, an effort has been made to fabricate nanopetal structured thin film of zinc oxide using chemical route for the efficient and fast detection of NO2 gas at lower operating temperature.

TL;DR: In this paper, high entropy alloy coatings were synthesized on aluminum substrate by laser surface engineering, which resulted in enhanced corrosion resistance for the coatings in near neutral NaCl solution.

TL;DR: In this paper, a photoactive sulfur-doped and nitrogen-deficient g-C3N4 photocatalyst with porous framework has been prepared by a one-step approach using trithiocyanuric acid as the precursor.

TL;DR: In this paper, the upconversion emission of Er 3+ /Yb 3+ -codoped Y 2 O 3 nanoparticles was investigated under 980 nm excitation, and the authors showed that strong up-conversion emissions can be observed in Er 3 + /Y b 3+-codoped y 2 O3 nanoparticles at both high and low temperatures, with a maximum sensitivity approximately 0.0044 K −1 at 427 K.

TL;DR: The additive processing of 99.94% pure copper powder via selective electron beam melting (SEBM) is presented in this article, where the high thermal and electrical conductivity of pure copper combined with the freedom in design in additive manufacturing is promising for future application.

TL;DR: In this article, Fe-doped and mixed ZnO nanoparticles were synthesized via a modified sol-gel method using water as unique solvent, and the structural properties were analyzed by X-ray diffraction and the results showed the existence of wurtzite structure.

TL;DR: In this paper, the synthesis of gold nanoparticles using aqueous chloroauric acid solution with the leaf extract of Pogestemon benghalensis (B ) O. Ktz.

TL;DR: In this article, a carboxyl multi-walled carbon nanotubes/calcium alginate (CMWCNT/CA) composite hydrogel nano-filtration membrane was prepared using polyethylene glycol 400 as the pore-forming agent.

TL;DR: In this paper, the green synthesis of silver nanoparticles using aqueous extract of Tephrosia tinctoria (TT) was investigated and the results showed significant free radical scavenging ability, inhibition of carbohydrate digestive enzymes (α-Glucosidase and α-Amylase) and enhancement of Glucose uptake rate.

TL;DR: In this paper, the reduction of gold ions into gold nanoparticles using Nerium oleander leaf extract in the one step green synthetic method was confirmed by UV-vis spectroscopic analysis.

TL;DR: In this paper, the existence of a quantitative relationship between the area under the stress strain curve from a tensile test and brittleness was shown to be a function of chemical structures and properties.

TL;DR: The engineered, drug-eluting, bio-absorbable vascular stent was analyzed and tested in vivo, and proving effective in animal experiments suggest that the new approach is useful for treating coronary thrombosis and it may provide a promising scaffold for developing biological stent technology.