Noticias
Equipo Editorial1994-12-01Materiales de Construccion
Materials Literature
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Article Effect of Adhesion and Filler Composition on the Mechanical Response of a Polypropylene/[CaC03/Mica] Composite was published on December 1, 1994 in the journal Science and Engineering of Composite Materials (volume 3, issue 4).
Cathodoluminescing features in brown diamonds correlate with the crystalline microstructure as observed by transmission electron microscopy. We identified distinctive emissions at 415.3, 425, 491.3 and 525 nm. The first two correlate with the so-called N3 and band-A emissions, while the last correlates with what is ca…
The cross section for total scattering by clusters of spheres is derived from an integration, over a closed spherical surface, of the scattered Poynting flux associated with the different pairs of spheres in the ensemble. With the use of the addition theorem for vector spherical harmonics the integral can be evaluated…
This paper presents the study of the nature and conservation state of different stuccos and Roman concretes from the Roman city of Baelo Claudia (Cádiz). The chemical, mineralogical and microstructural compositions of the said materials have been established. Different causes of their decay have been found, among whic…
The effect of changing pH on the dispersion of clay from sodic soils was investigated in relation to changes in net charge on clay particles. A positive relationship was obtained between pH and the percentage of dispersible clay for each soil clay. The percentage increase in net negative charge was also positively cor…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Characterization of a Molybdenum Disulfide NanoclusterZhi Jun Zhang, Jun Zhang, and Qun Ji XueCite this: J. Phys. Chem. 1994, 98, 49, 12973–12977Publication Date (Print):December 1, 1994Publication History Published online1 May 2002Published inissue 1 December…
ADVERTISEMENT RETURN TO ISSUEArticleNEXTAmide-Water and Amide-Amide Hydrogen Bond StrengthsDavid A. Dixon, Kerwin D. Dobbs, and James J. ValentiniCite this: J. Phys. Chem. 1994, 98, 51, 13435–13439Publication Date (Print):December 1, 1994Publication History Published online1 May 2002Published inissue 1 December 1994ht…
Cyclic voltammetry (CV) is a dynamic electrochemical method for measuring redox events. This summary of recent developments in the use of CV in materials science will be particularly useful for newcomers to the field. Following an introduction to the principles of CV, the current status of investigations of various ty…
Abstract This is a review on the long‐term behavior of polyolefin pipes used in hot‐water environments. Included in the review is work done on pipes of crosslinked polyethylene, isotactic poly(butene‐1), isotactic polypropylene and medium‐density polyethylene, and in particular the extensive work performed at Studsvik…
In the ZrO 2 -YO 1.5 solid solutions, the phase changes among the cubic phase (Fm3m, Z=4), the t″ form and the t' form were investigated by neutron and X-ray powder diffraction, where the t″ and t' forms are defined as tetragonal phases (P4 2 /nmc, Z=2) with axial ratios of c/a f =1 and c/a f >1, respectively, which w…
The room‐temperature tetragonal‐to‐cubic transformation in BaTiO 3 powders with decreasing particle size has been carefully studied, using materials prepared mainly by hydrothermal methods. Hydrothermal BaTiO 3 powders exhibited a more uniform particle size distribution than oxalate‐route powders, with X‐ray diffracti…
Pattern decomposition programs are able to derive, from the measured powder diffraction patterns, estimates of the square moduli of the structure factors. A method is described that, by statistical analysis of the normalized structure-factor moduli, is able to obtain information about the possible presence of preferre…