A simple clay-shrinkage measuring-device
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Materials Literature
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Effet du momont d'appliccation d’un produit d’étanchéité sur la qualité du béton
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Aumento de la producción de cemento y mejora simultánea de la calidad
Por vía teórica también experimentalmente se llega a la conclusión de que, en general, es conveniente elevar la cifra máxima SO3 mantenida en la actualidad en la mayor parte de las normas para cemento. Esta medida es particularmente beneficiosa en el aspecto de la retracción.
New matorials for brick making. Good insulation against atomic radiation
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Feuchtigkeitsschnellbestimmung mit hilfe von kalziuokarbid
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L’emploi d’indicateurs radioootifs dans les pates refractaires
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Marquette plant first to use new ACL manufacturing process
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Lap siding block
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Die Wärmerechnung fur Luftstron - Mahltrocknungsanlagen
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Das Faltenband und seine Einsatzmöglichkeiten in Kalk-und Zementwerken
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Elektroakustische Regelung der Beschickung von Zementmüluen
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Infrared spectra of high polymers. V. Polyvinyl alcohol
Abstract The infrared spectrum of polyvinyl alcohol has been investigated between 3600 and 70 cm. −1 . Polarization measurements on stretched specimens were made down to about 330 cm. −1 . The spectrum of a deuterated specimen (about 90% of the OH having been replaced by OD) has also been obtained. These data confirm…
Neutron Diffraction Study of the Structures and Magnetic Properties of Manganese Bismuthide
The intermetallic compound, BiMn, has been studied by neutron diffraction at temperatures from 4.2\ifmmode^\circ\else\textdegree\fi{}K to 733\ifmmode^\circ\else\textdegree\fi{}K (460\ifmmode^\circ\else\textdegree\fi{}C). In the temperature range 340-360\ifmmode^\circ\else\textdegree\fi{}C to 445\ifmmode^\circ\else\tex…
Paramagnetic Resonance of Lattice Defects in Irradiated Quartz
Various kinds of silica glass and natural and synthetic crystals have been irradiated with fast neutrons at temperatures of ∼250°C and above 300°C. In the glasses, asymmetric paramagnetic resonance lines resulting from the irradiation have been observed with apparent g values of 2.0013±0.0006 and 2.0090±0.0007, and ha…
Effect of Porosity on Physical Properties of Sintered Alumina
Porous structures having a continuous solid phase with isolated pores were prepared by the addition of different amounts of crushed naphthalene to an alumina casting slip. Samples of from 5 to 50% porosity were fired together for comparable grain development, eliminating structural variables except porosity. Effects o…
Diamagnetism of Graphite
The conduction-electron magnetic susceptibility of graphite has been calculated by using the Wallace two-dimensional band structure. The energy levels induced by the magnetic field are calculated by the method of Luttinger and Kohn, taking into account the large (in this case) effects of band-to-band transitions which…
Magnetic Susceptibility ofαMnS
The magnetic susceptibility of a powder sample of $\ensuremath{\alpha}\mathrm{MnS}$ was measured from 90\ifmmode^\circ\else\textdegree\fi{}K to 800\ifmmode^\circ\else\textdegree\fi{}K by an absolute Gouy method. The N\'eel temperature was found to be 154\ifmmode^\circ\else\textdegree\fi{}K. There was no evidence of th…
Auger Ejection of Electrons from Tungsten by Noble Gas Ions
Previously published data on Auger ejection from tungsten include the effect of a two percent admixture of metastable ions in the ion beam for A, Kr, and Xe. Data on yield and kinetic energy distribution of electrons ejected by the normal singly-charged ion only are presented in this paper.
Acoustodynamic Effects in Semiconductors
The presence in a semiconductor of both signs of current carriers makes it possible to disturb the spatial distribution of these carriers appreciably without giving rise to electrical space charge. As a result, the interaction of particles with acoustic waves leads to certain effects which, at least at low frequencies…
Neutron Diffraction Study of Manganese Ferrite
Neutron diffraction patterns have been obtained for polycrystalline Mn${\mathrm{Fe}}_{2}$${\mathrm{O}}_{4}$ at 300\ifmmode^\circ\else\textdegree\fi{}K and 4.2\ifmmode^\circ\else\textdegree\fi{}K. The fraction of tetrahedral sites occupied by ${\mathrm{Mn}}^{+2}$ has been found to be 0.81\ifmmode\pm\else\textpm\fi{}0.0…