Materials Literature
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Empirical correlations between X–H≡Y distance R and frequency shift of the X–H stretching motion Δv are presented for O–H≡O, N–H≡O, and N–H≡N hydrogen bonds. A linear correlation is possible provided a distinct straight line is assumed for each hydrogen bond type. The equations of the best straight lines and standard…
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Nuevo procedimiento de fabricación de placas de revestimiento, con características especiales (preparación por vertido, vidriado y cogió en conjunta con la base cerámica). Se pueden preparar placas de un espesor mínimo de 1 mm.
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Las características del coque de petróleo –elevada capacidad calorífica, pequeña cantidad de materia volátil y pequeño contenido de cenizas- hacen adecuado su empleo como combustible. Realizando la cocción de forma adecuada se obtiene un clinker normal.
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Las mezclas cemento/látex presentan una mayor resistencia a la abrasión, a los aceites, al agua y a ciertos disolventes. Su mayor flexibilidad impide la formación de grietas.
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In careful experiments by Dyke and his co-workers it has been observed that the field-emission currents from tungsten and barium-on-tungsten emitters were progressively reduced below that expected from the Fowler-Nordheim law as the field was increased. These effects were attributed to electron space charges in the ne…
A brief derivation of formulas for the transmittance of flat plates, uncoated and coated, is presented. Data showing the increased near infrared transmittance of seven flat samples resulting from quarter-wave coatings of MgF2 and LiF on their surfaces is presented. Five were coated to maximize transmittance for a wave…
Ei-ichi Shimazaki, Tsuguyasu Wada; Vapor Pressure of Germanium Monosulfide, Bulletin of the Chemical Society of Japan, Volume 29, Issue 3, 1 March 1956, Pa