Materials Literature
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The thermal contact resistance of polymer-based carbon fiber composites was calculated from experimental thermal conductivity values. Thermal conductivity of the composites increases as the fiber content increases. In order to explain the variation with size and volume fraction of the conductive inclusions in the comp…
Rice hulls and crushed pecan shells are two solid waste materials with potential for use as thermal insulation. The apparent thermal conductivity, ka, of parboiled rice hulls and crushed pecan shells has been measured in two laboratories over the temperature range 4 to 41 oC using heat-flow meter apparatuses. Thermal…
In a preliminary calculation the simple case of parallel flow past flat plates is investigated. Using this simplification numerous fouling experiments under different conditions were performed. The measurements were taken using aqueous solutions of CaSO4 and serve for the verification of the numerical simulation. The…
This paper is in four parts. The first is related to general considerations and experimental analyses, and each of the others is related to different approaches to theoretical analyses of the mechanical behaviour of weft-knitted fabrics and weft-knitted reinforced composites made of glass fibre. The objective is to fi…
Many organisms from a wide variety of taxa produce amorphous calcium carbonate (ACC), despite the fact that it is inherently unstable and relatively soluble in its pure state. These properties also make it difficult to detect and characterize ACC. Raman spectroscopy is a particularly useful method for investigating AC…
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…