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Chamber dryers in continente hollow block works. Unusuai fran system

R. Chimani1956-03-01Materiales de Construccion

El autor presenta el Sistema Rotomixair, empleado para la distribución del aire en los secaderos de cámaras. Consiste en un conjunto de ventiladores de unas características especiales, móviles, que se pueden desplazar dentro de la cámara. El secado es rápido.

Investigation of material transport in wet-process rotatory kilns by radio isotopes

J. Rutle1956-03-01Materiales de Construccion

El empleo de isótopos permite estudiar perfectamente el desplazamiento de los materiales a lo largo del horno. en otros aspectos referentes a la influencia de diversos factores sobre el funcionamiento del horno y sobre el proceso de cocción, se llega a la misma conclusión que mediante los métodos clásicos de investiga…

Chain scissions in a polymer network

M. M. Horikx1956-03-01Journal of Polymer Science

Abstract Relations between the soluble fraction and the number of effective chains between crosslinks in a three‐dimensional network undergoing a scission reaction have been derived. Three limiting cases have been considered: (a) random scission in the chains, (b) scission in the chains directed by the crosslinks, and…

Polymer Nanocomposites and PropertiesPolymer crystallization and propertiesSurfactants and Colloidal Systems

Electrolytic Shaping of Germanium and Silicon

A. Uhlir1956-03-01OpenAlex

Properties of electrolyte-semiconductor barriers are described, with emphasis on germanium. The use of these barriers in localizing electrolytic etching is discussed. Other localization techniques are mentioned. Electrolytes for etching germanium and silicon are given.

Semiconductor materials and interfacesIntegrated Circuits and Semiconductor Failure AnalysisSilicon Nanostructures and Photoluminescence

The absorption spectra of natural and irradiated diamonds

Catherine D. Clark、R. W. Ditchburn、H. B. Dyer1956-02-21Proceedings of the Royal Society of London A Mathematical and Physical Sciences

Abstract The absorption spectra of fifty-two natural diamonds have been measured at 80 and 290°K. Type I diamonds are shown to have two kinds of absorption centres which are not detected in type II diamonds. Differences in the infra-red absorption spectra between type IIa and type IIb diamonds are reported. The classi…

High-pressure geophysics and materialsMetal and Thin Film MechanicsDiamond and Carbon-based Materials Research

Infrared Absorption and Oxygen Content in Silicon and Germanium

W. Kaiser、P. H. Keck、C. F. M. de Lange1956-02-15Physical Review

An optical absorption band at 9\ensuremath{\mu} has been correlated with the oxygen content in silicon. Pulled silicon crystals were found to contain up to ${10}^{18}$ oxygen atoms per ${\mathrm{cm}}^{3}$ which seem to originate from the quartz crucible. The oxygen concentration in silicon crystals prepared by the flo…

Semiconductor materials and devicesSilicon and Solar Cell TechnologiesElectron and X-Ray Spectroscopy Techniques

The tensile properties of single crystals of high-purity iron at temperatures from 100 to ─253°C

N. P. ALLEN、B. E. Hopkins、J. E. McLennan1956-02-07Proceedings of the Royal Society of London A Mathematical and Physical Sciences

Abstract An account is given of the deformation and fracture characteristics of single crystals of high-purity iron of various orientations when tested in tension at temperatures from 100 to ─253°C. At temperatures down to ─124°C, the crystals were fully ductile, giving chisel-edge fractures and 100% reduction in area…

Electromagnetic Effects on MaterialsHydrogen embrittlement and corrosion behaviors in metalsMicrostructure and mechanical properties