Materials Literature
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This paper introduces a simple algebraic limiting loop proximity ((L/sup 2/P)) model to describe magnetic hysteresis. With only four parameters, it has low computational cost and reduced mathematical complexity, thus permitting a fast numerical implementation and simple parameter estimation procedure. The paper presen…
The effects of zinc and manganese content on extrudability of Mg–Al–Zn system alloys have investigated. Zinc enhanced occurrence of surface cracks. Hence,as the zinc content increased, the extrusion speed limit became low. When the manganese and zinc content was high, the surface oxide film was thick and the surface c…
The differential speed accumulative roll bonding (DSARB) process was attempted to strengthen 1100 aluminum sheet via grain refinement. The roll peripheral speed of one roll was 2.0 m/min and that of another roll was 3.6 m/min. The roll speed ratio was kept at 1.8. The accumulative roll bonding was conducted up to 6 cy…
Specimens of a plain-woven cotton fabric and a plain single-jersey weft-knitted fabric were washed and then tumble-dried for predetermined periods of time under three different temperature settings. Length and width shrinkage, wrinkling, mass of whole specimen, and warp and weft yarn diameters were determined by using…
Nd–Fe–B sintered magnet scraps were reproduced as the corresponding sintered magnets from the ground powders (mean particle ≤3 μm) by using a binary alloy blending technique. Although the magnets re-sintered from the as-ground powders only provided poor magnetic properties, especially the observed coercivity values (∼…
A two-dimensional microstructure with low reflectance was fabricated on the surface of an SiO2 plate by the precise regulation of its shape and surface morphology. A periodically dotted mask pattern of a positive resist was formed on SiO2 by a two-beam interference method using a He-Cd laser with a wavelength of 325 n…
Classical descriptions of the Vickers indentation technique, used for toughness measurements in dense ceramics, model the indent as an expanding sphere which induces the extension of median radial cracks. They result in the use of a proportionality factor hr relating the toughness of the material to the indentation lo…
AIM: To propose a simple and effective method suitable for analyzing the angle and distribution of 2-dimensional collagen fiber in larger sample of small intestine and to investigate the relationship between the angles of collagen fiber and the pressure it undergoes. METHODS: A kind of 2-dimensional visible quantitati…
Tensile dynamic mechanical analysis at 1 Hz was used to characterize the solid rheological properties of β-PVDF films. Both the elastic and loss moduli and the specific damping capacity were monitored against temperature, allowing the study of the effect of anisotropy upon the viscoelastic properties of the films. The…
Using electromagnetic levitation in combination with the oscillating drop technique and drop calorimeter method, the surface tensions and specific heats of undercooled liquid Co-10 wt% Mo, Co-26.3 wt% Mo, and Co-37.6 wt% Mo alloys were measured. The containerless state during levitation produces substantial undercooli…
Microstructural evolution during transient liquid phase (TLP) bonding of nitrogen containing duplex stainless steel UNS S31803 has been investigated. In order to evaluate mechanical property of joint, tensile strength test was carried out at room temperature. TLP bonding was conducted at the temperature range 1283–135…
The transient liquid phase (TLP) bonding process of Ni using a Ni–11 mass%P binary filler metal was simulated by using both a phase-field model (PFM) and a moving boundary model (MBM). The dissolution of the base metal and isothermal solidification behavior during the TLP bonding process were simulated, and the result…
The atomic layer deposition (ALD) method based on surface-saturating gas-solid reactions was applied to grow vanadia species on highly dispersed titania/silica supports with from submono- to above monolayer levels of titania. The physicochemical properties of the V2O5/TiO2/SiO2 catalysts were examined with N2 adsorpti…
Abstract We present a detailed density functional theory‐based investigation on the geometry and electronic structure of the [Co 4 (hmp) 4 (MeOH) 4 Cl 4 ] molecule. It is experimentally found to behave as a molecular magnet. The all‐electron electronic structure calculations and geometry optimization of the 88‐atom mo…
Theoretical and experimental results on the limitation of pulsed radiation in the spectral range 3.8–10.6 µm in vanadium dioxide films are presented. The effect of the film structure on the shape of the temperature hysteresis loop is studied. The film thickness and the structure of an interferometer with a vanadium di…
The relationship between primary and secondary recrystallization texture, and the improvement of primary texture on grain oriented silicon steel was examined. The specimens were prepared by using different C content and different hot rolling conditions in the acquired inhibitor method. Higher reduction of the later pa…
The meso-disubstituted dipyrrolide ligand (L) has promoted the formation of a unique tetranuclear iron(II) compound that contains both diazaferrocenyl and distorted-tetrahedral iron centres.
This study examined the effect of medium density fiberboard (MDF) density and sorption state on the sorption isotherms and the effect of panel moisture content and density on the effective water conductivity and diffusion coefficient of MDF panels. A total of 39 laboratory-made MDF panels with dimensions 650 mm X 650…
Flame spray pyrolysis has been utilized in order to improve the photoluminescence (PL) intensity of blue-emitting phosphor particles for light emitting diode applications. When phosphor particles were prepared by conventional spray pyrolysis, the PL intensity was much lower than that of commercial phosphor particles.…
Templated sol–gel encapsulation of surfactant-stabilised micelles containing metal precursor(s) with ultra-thin porous silica coating allows solvent extraction of organic based stabiliser from the composites in colloidal state hence a new method of preparing supported alloy catalysts using the inorganic silica-stabili…