Materials Literature
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This paper presents an overview of the status and relevant technical issues for the ITER-like Wall Project with emphasis on progress since the 11th International Workshop on Plasma-Facing Materials and Components for Fusion Applications.
We have investigated the exchange constant A (exchange stiffness D) and the magnetic anisotropy of Co2MnAlxSi1−x (CMAS) Heusler compounds as a function of the film composition. In case of Co2MnSi, A was found to be 23.5 pJ/m (D=5.86 meV nm2). Furthermore, A decreased with an increase in the Al content x. In the case o…
The fungus-mediated synthesis of gold nanoparticles with various shapes and sizes is reported. Shape and size of the products may be controlled using different concentrations of HAuCl 4 .
Continuous wave (CW) and pulse electron paramagnetic resonance (EPR) experiments, in conjunction with density functional theory (DFT) calculations, provide a detailed description of defective centres produced upon nitrogen doping of polycrystalline ZnO. Two distinct paramagnetic species are formed upon annealing of Zn…
The main approaches to the formation of modern functional materials for medical implants, including the principles of material choice on the criteria of their biochemical and biomechanical compatibility and their technological effectiveness, are represented in this review. Titanium alloys are considered the most prosp…
The response of the cold-adapted (psychrophilic) methanogenic archaeon Methanococcoides burtonii to growth temperature was investigated using differential proteomics (postincorporation isobaric labeling) and tandem liquid chromatography-mass spectrometry (LC/LC-MS/MS). This is the first proteomic study of M. burtonii…
A study was conducted to obtain the equations of equilibrium and constitutive equations for the stress resultants and couples tensors while taking into account the surface stresses acting on the shell surfaces. The equations were obtained generalizing the results to the case of the linear theory of elastic shells taki…
Abstract A novel approach is used to deposit transparent Al‐doped zinc oxide (AZO) films by metal‐organic (MO) CVD using a Zn/Al safe, friendly to use, easily to handle, multimetal, liquid precursor source. Films are highly crystalline, (002) textured, and exhibit good transparency in the visible region (90%). The eff…
We demonstrate the fabrication of surface profile-controlled close-packed Si nanorod arrays (NRAs), using a scalable and integrated circuit compatible process combining colloidal lithography and reactive ion etching. Si NRAs exhibit broadband, omnidirectional, and polarization-insensitive antireflection (AR) propertie…
Abstract A bentonite sample from the Petreş ti deposit, Cluj County (Romania), was used to remove heavy-metal ions (Cd 2+ , Pb 2+ , Cr 3+ ) from wastewaters. A representative sample of bentonite (P) was characterized using the Brunauer-Emmett-Teller (BET) method, wet chemical analyses, X-ray diffraction (XRD) and Four…
Because of high carrier velocities and quasi-ballistic transport properties, carbon-based (nanotube, graphene) field effect transistors (CNFETs) are considered to be potential candidates to replace CMOS in future technology generations . Most prior modeling of CNFETs has involved complex models, such as NEGF , but to…
Tin doped indium oxide thin films were prepared on glass substrates kept at room temperature, by activated reactive evaporation (ARE). Structural, electrical and optical properties were studied for films having different thickness. The resulting films are polycrystalline and show ˜ 90 % transmission in the visible reg…
The inhibitive and adsorption properties of ethanol extract of Terminalia catappa for the corrosion of mild steel in H2SO4 were investigated using weight loss, hydrogen evolution, and infra red methods of monitoring corrosion. Ethanol extract of T. catappa is a good adsorption inhibitor for the corrosion of mild steel…
Single crystals of pure and amino acid (L-arginine and L-alanine) doped potassium dihydrogen phosphate (KDP) for second harmonic generation have been grown from low temperature solution growth method by employing slow evaporation of the solvent. FT-IR spectrum of pure and doped KDP crystals confirms qualitatively the…
We report an all-aqueous synthesis of highly photoluminescent and stable ZnS quantum dots (QDs) with water as the medium, i.e. first synthesizing ZnS QDs with 3-mercaptopropionic acid (MPA) as the capping molecule, followed by replacing some of MPA with (3-mercaptopropyl) trimethoxysilane (MPS). The resultant MPS-repl…
Stainless steels are widely used as structural materials even in aggressive environments due to their good mechanical and corrosion properties. In particular, duplex (austenitic-ferritic) stainless steels are becoming common materials for oil and gas applications, specifically facilities that were built after the 1970…
Molecular-dynamics computer simulations in conjunction with Lees-Edwards boundary conditions are used to investigate a glass-forming binary Yukawa fluid under shear. The transition from the elastic response to plastic flow is elucidated by studying the stress relaxation after switching off the shear. We find a slow st…
Presented herein is an investigation into the buckling behavior of single-walled carbon nanotubes (SWCNTs) with defects via molecular dynamics (MD) simulations. Various kinds of defects including point defects (monovacancy, bivacancies, and line) and topological defect such as Stone–Wales (SW) are considered. The MD s…
We solve the equations governing light propagation in a negative-index material with embedded nonlinearly saturable gain material using a frequency-domain model. We show that available gain materials can lead to complete loss compensation only if they are located in the regions where the field enhancement is maximal.…
Problem statement: Silver/Montmorillonite/Chitosan Bionanocomposites (Ag/MMT/Cts BNCs) have been synthesized by UV-irradiation reduction method in the absence of any reducing agent or heat treatment which is used to antibacterial application and medical devices. Approach: MMT, Chitosan and AgNO 3 were used as a solid…