Materials Literature
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We immobilized 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonate) through a spacer to polymer grafted onto carbon black to fabricate a three-dimensional biocathode with high surface area that reduces oxygen in the presence of laccase. Cyclic voltammetry using a rotating disk electrode shows that an oxygen reduction rea…
We utilized both resonant ultrasound spectroscopy (RUS) and Schaefer-Bergmann diffraction patterns (SBDP) to measure the elastic stiffness coefficients of the trigonal, non-piezo-electric crystal α−BaB2O4. RUS determines the elastic coefficients of a sample by matching measured resonant frequencies to a model of reson…
Material properties of Zr 2.5 wt% Nb pressure tube change during reactor operation due to the surrounding environmental conditions. Measurement of mechanical properties of the pressure tubes is important for assessing their fitness for service. As it is required to remove a pressure tube from service to prepare specim…
Friction stir processing (FSP) has been developed on the principles of friction stir welding (FSW) as an effective and efficien new method for grain refinement and microstructural modification, providing intense plastic deformation as well as higher strain rates than other conventional severe plastic deformation metho…
In order to measure the thermophysical properties of ammoniated salt (CaCl2.mNH3: m = 4, 8) as an energy storage system utilizing natural resources, the measurement unit was developed, and the thermophysical properties (effective thermal conductivity and thermal diffusivity) of CaCl2.mNH3 and CaCl2.mNH3 with heat tran…
Five charged iridium(III) complexes with a different number and position of methyl group; [Ir(phen)(ppy)2]PF6 (1), [Ir(4-phen)(ppy)2]PF6 (2), [Ir(2,9-phen)(ppy)2]PF6 (3), [Ir(4,7-phen)(ppy)2]PF6 (4) and [Ir(4,5,6,7- phen)(ppy)2]PF6 (5) were synthesized and characterized by NMR, IR, UV-Vis absorption, fluorescence spec…
Clinoptilolite is a natural zeolite that found many applications in industries and medicine due to its high surface area/volume ratio. Metronidazole is an acidic drug that is currently used as an antimicrobial and antiparasitic drug, which induces gastric disturbances due to gastric mucosal irritation. In the present…
In this study we prepared a new rust conversion coating and examined its corresponding characteristics through a series of experiments. And at the end of the paper, we summarized the working mechanism of it. All the results may help to promote the development of rust conversion coatings and anti-corrosion science.
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Aos maraging so ligas Ni-Co-Mo-Ti de ultra alta resistncia e vasta aplicao, de fundamental interesse no setor aeroespacial em razo de elevada resistncia mecnica, aliada a uma excelente tenacidade. Estes aos tm sido propostos para substituir o ao 300 M ou o ao 4340 em partes do veculo lanador de satlites brasileiro (VL…
Polyurethane (PU) with single-walled carbon nanotubes (SWCNTs) composites were prepared by an in-situ polymerization method, using 1,6-hexane diisocyanate and hydroxyl terminated polybutadiene in tetrahydrofuran. All the composites exhibit as tough films. The PU/SWCNTs blend interactions were studied between the poly(…
This review briefly summarizes recent developments in the construction of biologically/environmentally compatible chemical machinery composed of soft matter. Since environmental and living systems are open systems, chemical machinery must continuously fulfill its functions not only through the influx and generation of…
Novel composite resins with dual absorption properties of water and oil are prepared by the polymerization of high internal phase emulsion (HIPEs) with n-butyl methacrylate as the external phase monomer and acrylamide as the internal phase monomer. The subsequent polymerization leads to the formation of water and oil…
The structural, electronic, and optical properties of binary CdO, CdSe, and their ternary CdO 1− x Se x alloys (0 ≤ x ≤ 1) in the rock salt and zinc blend phases have been studied by the special quasi-random structure (SQS) method. All the calculations are performed using full-potential linearized augmented plane wave…
The effects of cyclic extrusion and compression (CEC) on the deformation behavior and failure of ZK60 alloy were examined using in-situ scanning electron microscope (SEM) uniaxial tensile testing at room temperature. Fracture surface was analyzed by SEM. Result shows that the tensile elongation of the extruded ZK60 al…
In this work, Molten Salts Electrodeposition has been employed to produce Fe-Si alloy. Technological parameters including influence of Molten Salts Electrodeposition technic in aggradation layer appearance and distribution of silicon content along with thickness. The results also show that the size of superficial part…
This work presents a study related to the achievement of a nanometric structure in AA3103, employing severe plastic deformation processes (SPD), in this case equal channel angular pressing (ECAP). The changes in the mechanical properties and in the microstructure of AA3103 were studied after being processed by ECAP. S…
Model Order Reduction Methods, like the Proper Orthogonal decomposition (POD), enable to reduce dramatically the size of a FE model. The price to pay is a loss of accuracy, compared to the original FE, model that should be controlled. In this communication, we apply an error estimator based on the verification of the…
The Italian Zecomix platform is a gasification pilot-scale plant integrated CCS technology, whose flexibility allows operating each unit alone. For quantitative analysis of the gaseous species an analytical system based on commercially available instruments and sampling lines at various points of plant was properly de…
NiTi is the most commonly used shape memory alloy (SMA) and has been widely used for bio-medical, electrical and mechanical applications. Nickel rich NiTi shape memory alloys are coming into prominence due to their distinct superelasticity and shape memory properties as compared to near equi-atomic NiTi shape memory a…