Abstract
In this work, Mg₂Ni and Ni were added to MgH₂ in order to improve the hydrogen-storage properties of Mg. A 94 wt% MgH₂+5 wt% Mg₂Ni+1wt% Ni (named 94MgH₂+5Mg₂Ni+1Ni) sample was prepared by milling in a hydrogen atmosphere in a planetary ball mill for 5 h. The Mg₂Ni was hydrided during..... More

Abstract
A bauxite of low quality containing 6.75% reactive silica and 37.4% Al₂O₃ as gibbsite was roasted with additives including NaOH (caustic/total alumina molar ratio of 2-4:1) and CaO (CaO/total SiO₂ molar ratio of 0.5-3:1) at 300-1000 oC, producing calcines containing sodium aluminate (Na2O.Al₂O₃), silicates and hematite. Optimum conditions included roasting..... More

Abstract
The boron alkali molybdate glass system was investigated as lead-free low-temperature melting sealing materials, with different boron oxide contents between 0 and 8 mol%. The glasses were characterized using X-ray diffraction (XRD), differential scanning calorimetry (DSC), infrared spectroscopy (IR), and by densities. Their chemical properties were measured by their dissolution..... More

Abstract
The authors report the fabrication of a flexible nickel brazing foil using powdered nickel alloy filler (BNi-2) mixed with an organic binder. The organic binder was composed of a polyacrylic acid polymer, glycol, carbon tetrachloride, and water as a dispersion medium for the powder. The brazing paste so formed was..... More

Abstract
Nanoscale Sn-Bi-Ag compound powders were successfully synthesized using the pulsed wire discharge (PWD) method. In PWD, when a high current is passed through high-density metal wires, the wires explode because of resistance heating, forming fine particles or metal vapor. In this study, we used Sn-Bi and Ag wires in order..... More

Abstract
A thin, compact, and uniform cobalt layer was coated on ferritic stainless steel (Crofer 22 APU) by high frequency square pulsed electrodeposition in an aqueous solution containing cobalt chloride and boric acid. The effects of various electrodeposition parameters and post heat treatment on the morphology, thickness, roughness and adhesion of..... More

Abstract
The material characterization of single crystalline Cu columns was numerically carried out at the submicroscopic level. A molecular dynamics (MD) simulation was employed using the embedded-atom method (EAM) interatomic potential between a pair of Cu atoms to describe the interactions among Cu atoms. First, the relationship between mechanical properties and..... More

Abstract
The separation of Re(VII) and V(V) by solvent extraction with TBP was investigated by varying the HCl, metal and chloride ion concentrations. Re(VII) was selectively extracted over V(V) from the HCl solution. The highest separation between Re(VII) and V(V) occurred at a concentration of 2.0 M HCl. The extraction reaction..... More

Abstract
Interstitial free (IF) steel disks were subjected to various degrees of revolution during application of the high-pressure torsion (HPT) process, and the resulting distributions of hardness and microstructure during the early torsion stage of high-pressure torsion (HPT) were investigated using experimental and simulation approaches. The results indicated that the deformation..... More

Abstract
Abstract: In this work, Zn(BH₄)₂ was added to improve the hydrogen-storage properties of MgH₂. A 99 wt% MgH₂+1 wt% Zn(BH₄)₂ sample was prepared by milling in a planetary ball mill in a hydrogen atmosphere. The proportion of the added Zn(BH₄)₂ was small (1 wt%) in order to increase hydriding and..... More

Abstract
In the photovoltaic industries, the main technique of metallization is screen printing with silver pastes, due to its simple and quick process. However, the high price of silver paste is one of the barriers to the producing of low cost solar cells. Consequently, a primary target in photovoltaic research is..... More

Abstract
The wetting behavior of liquids on solid surfaces is important in the study of surfaces and interfaces. In this study, the wetting behavior of deionized (DI) water and hexadecane on fluorinated and micro-patterned polymer surfaces was investigated. The sample surfaces were processed by spray coating and thermal imprinting, respectively. The..... More

Abstract
Mill-annealed Ti-6Al-4V (Ti64) sheets were formed into rectangular shaped pans with two square recesses by the superplastic forming (SPF) technique under high pressure using commercial grade argon gas. The SPF process induced a significant decrease in the tensile ductility and high cycle fatigue (HCF) resistance of the Ti64 alloy. The..... More

Abstract
The near-infrared (NIR) reflecting properties of TiO₂ /Ag /TiO₂ (TAT) multilayers deposited using DC/RF magnetron sputtering were investigated. For high transmittance and reflectance in the visible and NIR ranges, respectively, the thickness of each layer was theoretically optimized by the index matching method. As the Ag layer thickness increased, the..... More

Abstract
This study investigated the feasibility of using HfO₂ as a dispersoid in the additive manufacturing process, compared to Y₂O₃. The effect of pre-annealing treatment was investigated too. Scanning electron microscopy (SEM) analyses revealed unusually coarse deposition layers for both the HfO₂ and Y₂O₃ dispersed oxide dispersion strengthed (ODS) steels, in..... More

Abstract
The delayed cracking behavior of deep-drawn lean duplex stainless steel (LDSS) was investigated, and compared with that of conventional metastable austenitic stainless steels (MASS). Hydrogen charging was performed by electrochemical method, and the hydrogen-charged specimens were subjected to the slow-strain-rate test. Fractures occurred along the phase boundaries in the LDSS,..... More

Abstract
Pt-functionalized RGO samples were prepared and subsequently irradiated with 2-MeV electron beams (e-beams). The effect of e-beam dose on the structural, electrical, and gas sensing properties of the samples was investigated. E-beam irradiation was found to induce significant microstructural changes in the Pt-functionalized RGO. Measurements of NO₂ sensing at room..... More

Abstract
A new Ni based superalloy is considered as bucket material because of high fatigue resistance with fine grain. However a bucket is usually exposed to high temperature for a long time, so creep rupture tests were conducted to understand the microstructure evolution during creep deformation under various stresses at temperatures..... More

Abstract
The solvent extraction of tungsten(VI) from hydrochloric acid solutions using 5,8-diethyl- 7-hydroxydodecan-6-one oxime (LIX 63) was analyzed in solutions having an initial pH range from 2 to 5, by varying the concentration of metal and extractant. In our experimental range, the cationic exchange reaction as well as the solvation reaction..... More

Abstract
In this study, a spray drying system was used to prepare macroporous titania micro-particles for applications including UV blocking materials and photocatalysts. To synthesize the macroporous particles a colloidal templating method using polymeric beads as sacrificial templates and a titania nano-colloid as precursor material was adopted. The resulting porous titania..... More

Abstract
Solvent extraction was employed to recover precious metals (Au (III), Pd (II) and Pt (IV)) from the leach solution of spent electronic wastes containing Cu (II), Cr (III) and Fe (III). First, pure Fe (III) and Au (III) were recovered by simultaneous extraction with Cyanex 923 followed by selective stripping..... More

Abstract
An AlCrTiSiN film composed of 31Al-15Cr-1.7Ti-0.5Si-51.8N (at%) was deposited on a steel substrate by arc ion plating to a thickness of 1 μm. It consisted of nano crystalline hcp-AlN and fcc-CrN. Its corrosion behavior in Ar-1%SO₂ gas at 800 ℃ for 5-50 h was studied. The resulting scales consisted primarily..... More

Abstract
Sn-doped ZnO (ZTO)/Ag/ZTO tri-layer films were deposited on glass substrates by radio frequency (RF) and direct current (DC) magnetron sputtering and then vacuum annealed at 100, 200 and 300 ℃ for 30 min with a proportions of H₂/N₂ gas flow of 6/6 sccm, to investigate the effects of annealing temperature..... More

Abstract
Computational fluid dynamic modeling of a continuous rheo-casting technology was conducted, consistent with the manufacturing of 3 mm-thin plates made of aluminum alloy A356. The A numerical simulation on of the stabilizing time of the material crystallization was carried out using the ANSYS FLUENT code. Solidification and melting models were..... More

Abstract
In this study, the effect of α and β those stabilizers on the microstructure and phase transformation of cast Ti-6wt%Al-4wt%V alloy at various solution treatment temperatures was investigated. The dependence of the transformation behavior of the β phase during the solution treatment and its dependence was determined by the partitioning..... More

Abstract
The aim of this study is to establish an optimized hot-press sintering condition for aluminum matrix composites (AMCs) by analyzing their sintered microstructure and mechanical properties. The fabricated AMCs in this study consisted of a blend of commercial Ecka Alumix 431 powder, and Al-Si/SiC_p powder manufactured by gas atomizer (Al-Si/SiC_p)...... More

Material Analysis & Characterization

Abstract
We used Sn-58Bi and Cu wires to investigate the effects of variable conditions (such as pressure and wire diameter) on the formation of three-component nanoparticles. In the synthesis of the three-component nanoparticles, pulsed wire discharge was used to sublimate the wires. In this system, the K factor is described as..... More

Abstract
ZnO buffer layers were deposited on mica substrates using a sol-gel spin coating method. Then, a thin film of metallic Zn was deposited onto the ZnO buffer layer/mica substrate using a thermal evaporator, and the deposited Zn thin films were then thermally oxidized in a furnace at 500 ℃ for..... More

Abstract
In this work, niobium (V) fluoride was selected as an additive to heighten the hydrogen sorption rates of Mg. Specimens of pure Mg, 5 wt% niobium fluoride－added Mg, and 10 wt% niobium fluoride-added Mg were prepared by planetary ball milling in hydrogen. The hydrogen sorption properties of the specimens were..... More

Abstract
Herein, we report the results of our investigation on the effect of friction and anvil design on the heterogeneous plastic-deformation characteristics of copper during the compressive stage of high-pressure torsion (HPT), using the finite element method. The results indicate that the friction and anvil geometry play important roles in the..... More