Materials Literature
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A study of the hydration process of cements with 10% and 20% addition of a tuff from "Las Carolinas" quarry (Cienfuegos, Cuba) by different methods was done. The results obtained by different methods showed a good agreement. It was proved an increment of the hydration products, an acceleration of alite hydration and a…
The present paper deals about the infuence that addition of calcareous "filler" has on the set of portland cement which rates are from 0 up to 50% of filler.
A one‐step electrochemical synthesis of polymer and composite polymer fibers of macroscopic dimensions (>10 cm length and 0.2 mm diam) is reported. Poly(3‐methylthiophene) and polypyrrole fibers are grown from the tip of a Pt microelectrode by oxidation of 3‐methylthiophene and pyrrole, respectively, in a capillary fl…
The growth mechanism of poly(3‐methylthiophene) has been studied employing in situ spectroelectrochemical and kinetic measurements. Results indicate that: ( i ) the polymer film grows only when 3‐methylthiophene is oxidized, suggesting that the radical‐radical coupling reaction is important for the polymer growth; ( i…
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPotential- and pH-dependent surface-enhanced Raman scattering of p-mercapto aniline on silver and gold substratesWieland Hill and Bernhard WehlingCite this: J. Phys. Chem. 1993, 97, 37, 9451–9455Publication Date (Print):September 1, 1993Publication History Published online1…
We have successfully implemented a method to measure intensity autocorrelation functions with a CCD camera and a fast computer. We report light scattering experiments on solutions of diffusing latex spheres in glycerol and compare our results to those obtained with a conventional hardwired electronic correlator. Avera…
The principle of a Curie balance was changed by using a sinusoidally cycling applied magnetic field instead of a fixed applied field. This was done with a horizontal translation type Curie balance. By cycling between field values Bmin and Bmax, the output signal is amenable to Fourier analysis. Partial Fourier analysi…
Neutron-powder-diffraction data, collected with the D1B diffractometer, and single-crystal data, collected with the D10 four-circle diffractometer, both at the Institut Max von Laue--Paul Langevin, Grenoble, and single-crystal data, collected with the DN4 four-circle diffractometer at the Centre d'Etudes Nucl\'eaires…