Materials Literature
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Herein, we present the use of presynthetic and postsynthetic modification (PSM) approaches to regulate the structural organization of functional groups in the pores of isoreticular metal-organic frameworks (IRMOFs). It has been found that the structural ordering of aryl groups within the IRMOF pores results in hystere…
This paper presents the optimization of cutting parameters for improving surface finish of stainless steel SS304 in the abrasive assisted drilling. In the present work, drilling of SS304 with supply of abrasive slurry consisting of silicon carbide abrasives of 1250 mesh size has been studied. The slurry concentration…
From an economic point of view, the structural stability of noble-transition bimetallic catalysts is as significant as their well-studied catalytic efficiency. The structural evolution and corresponding dynamics of NiAu bimetallic nanoparticles under ambient conditions are investigated using in situ Cs-corrected STEM…
Abstract Hot rolled and annealed AISI 1050 steel cylindrical coupons were flow formed at different levels of deformation (66% and 90% wall thickness reduction). TEM studies revealed development of ultra-fine (sub)grain cell structure due to severe plastic deformation. The transverse subgrain size changed from 10 μm (b…
A new forming technique to produce a cup with an upper and lower hollow boss by plate forging is proposed. In this process, the sheet metal is worked into a drawn cup by the deep drawing process and then deformed to the target shape by compressing the cup edge. One-stage edge compression process and two-stage compress…
Current study focused on the production of precipitated calcium carbonate on the basis of oil shale waste ash. The indirect aqueous carbonation of oil shale ash involved 2 main steps: Ca2+ leaching from ash and carbonation of the leachate in a continuous flow disintegrator-reactor accompanied by the crystallization of…
The problem of determining the eigenvalues of a vibrational system having multiple lumped attachments has been investigated extensively. However, most of the research conducted in this field focuses on determining the natural frequencies of the combined system assuming that the characteristics of the combined vibratio…
Nanorods of indium-tin-oxide were used to enhance the performance of polymer solar cells.
The properties and the eciency of a semiconductor thin lm depend on the state of stress and defects in the lm structure. When the lm is growing layer by layer, the elastic energy due to deformation stress between the substrate and the lm is released partly due to the formation of dislocations in the critical thickness…
Silver nanoparticles dispersed into a resin are deposited on silica glasses by the spin coating method and heated around 100 °C. UV-VIS measurements show high stability of the optical spectra after heat treatment, suggesting that the morphology of the silver nanoparticles are stable. The transmission electronic micros…
Four silver sulfobenzoate coordination polymers with bpmb ligands were prepared. The variable positions of sulfonate groups on benzene rings gave rise to different coordination polymers and variable chemical properties.
We successfully produced a large area, flexible and robust TiO 2 nanofiber/carbon fiber sheet with great convenience for water purification.
In-plane uniaxial anisotropic CoPd-CaF2nanogranular soft magnetic films for gigahertz applications were prepared using RF tandem-sputtering deposition with substrate revolution. Strong anisotropy with a large anisotropy field exceeding 50 kA/m was achieved in the centrifugal-centripetal direction of the substrate revo…
This research fabricates bipolar plates for direct methanol fuel cells (DMFC) to improve compressive strength and creep behaviour. The composites comprise of poly (methyl methacrylate) (PMMA), polyurethane (PU) and carbon black (CB) those were fabricated via bulk polymerization in a casting process. The technique can…
The aim of this study is to construct a simple heat-transfer model to present the temperature of the interface between the polymer electrolyte membrane (PEM) and the catalyst layer at the cathode, i.e., the reaction surface, in a single cell of polymer electrolyte fuel cell (PEFC). The model is based on the temperatur…
The different effects of binaphthyl enantiomers on the photophysical properties of chiral conjugated polymers were observed and analyzed for chiro-optic investigations.
The master curve methodology proposed by Kim Wallin (ASTM E1921-02) has been used to evaluate master curve and reference temperature (T0) from TPB specimen for the material 20MnMoNi55 steel using single temperature and multi-temperature method. The effect of test temperature on reference temperature (T0) has been stud…
The synthesis and characterization of a series of injectable and stimuli responsive hydrogels based on polyacryloyl hydrazide have been accomplished using dimethyl 2,2′-thiodiacetate, acrylic acid, diethyl malonate and polyethylene glycol diacrylate as cross-linkers through a chemical or dual cross-linking pathway.
Coal exploited in the mine of Jerada (northeast of Morocco) was accompanied by large quantities of waste. The purpose of this work is to characterize this waste with the aim of its use as a material for civil engineering. Mineral and chemical investigations on this waste in the raw state, and at different temperature…
AIM: To compare seven commercially available bone graft substitutes (BGS) in terms of these properties and without using any additional biological growth factors. METHODS: Porcine osteoprogenitor cells were loaded on seven commercially available BGS and allowed to proliferate for one week followed by osteogenic induct…