Materials Literature
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The complex role of sulfur in magnesium treated iron was evaluated in both ductile and compacted graphite irons. At elevated levels, sulfur can act as a harmful element resulting in magnesium-neutralization and increased dross formation but is also beneficial and essential at lower levels because it promotes suitable…
Cure characteristics and mechanical properties of styrene butadiene rubber reclaimed rubber blends were studied. The blends showed improved processability, as indicated by the minimum torque values. Cure characteristics like minimum torque, (maximum-minimum) torque, cure time and cure rate decreased in the presence of…
The hydrothermal and ceramic syntheses, single crystal structures and some properties of MnTe6O13, NiTe6O13 and CoTe6O13 are described. These isostructural phases [space group R (No. 148) with a ≈ 10.2 Å and c ≈ 19 Å] contain a dense network of isolated MO6 (M = Mn, Ni, Co) octahedra, TeO4 folded squares and distorted…
Kozoite-(La), (La, Nd, Ca)(CO3)[(OH), (H2O)], occurs in cavities of alkali olivine basalt at Mitsukoshi, Hizen-cho, Higashi Matsuura-gun, Saga Prefecture, Japan. Minute crystals of kozoite-(La) form a spherical aggregate with kozoite-(Nd). Concentric zoning textures of kozoite-(La) and kozoite-(Nd) can be observed on…
The phase diagram of the Mo–H system was determined by in situ X-ray diffraction using synchrotron radiation up to 1200°C and the hydrogen pressure to p(H2) = 5.3 GPa. Three phases were found to exist; a bcc phase (α) of low hydrogen concentrations at low hydrogen pressures, and two high-pressure phases, an hcp (ε) ph…
A new functional material with nonzero microwave absorption ability at zero applied magnetic field results from loading MCM-41 to a high percentage by weight with ferric oxide.
Raman spectroscopic investigations of the major lateral teeth of the chitons Acanthopleura rehderi and Acanthopleura curtisiana indicate that, in addition to the magnetite of the cutting surface and a carbonated hydroxyapatite in the central tooth core, these species deposit limonite in place of the lepidocrocite repo…
Part I of this two part series of papers has shown that existing pattern drafting methods are much less than adequate for drafting patterns to fit a wide range of body morphology. To solve this problem, this paper considers predicting shirt pattern parameters from 3D body measurements. Two prediction models are report…
Fe–Pd films have been deposited onto fused quartz substrates using a dual source dc magnetron sputtering apparatus, equipped with two independent targets of pure Fe and Pd. The Pd content of deposited films can be controlled with an accuracy of 1 at%Pd by varying the power for the Pd target at constant power for the F…
A systematic study of the mesomorphic properties of two homologous series of copper(II) and palladium(II) complexes 1a–b derived from unsymmetrical β-diketonate derivatives 2 containing a variety of functional substituents (X = H, CH3, C2H5, OCH3, Cl, Br, I, CN) on the phenyl ring is reported. These disc-like molecule…
Decarburization of silicon steel sheets by annealing with oxide separators has been found to cause a high degree of {100}-texture development. Cold-rolled Fe–3%Si–1.1%Mn–0.05%C sheets of 0.35 mm thickness were laminated with separators containing SiO2. They were then annealed under a reduced pressure at about 1300 K i…
Foam fractionation of poly(vinyl alcohol) with external foamate reflux was carried out with a perforated plate foam column. The insertion of perforated plates significantly decreased the liquid distributed in the foam. Consequently, the enrichment factor in the perforated plate column was twice as much as that in the…
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…