The thermal conductivity of dielectric solids at low temperatures
(1953). The thermal conductivity of dielectric solids at low temperatures. Advances in Physics: Vol. 2, No. 5, pp. 103-140.
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Study of the Structure of Quartz, Cristobalite, and Vitreous Silica by Reflection in Infrared
Infrared spectra of α- and β-quartz, α- and β-cristobalite, and vitreous silica were studied by the reflection method using natural and polarized radiation in the 700 to 1400 cm−1 wave number interval. By measuring the reflecting powers at two different angles of incidence, the indices of refraction and extinction wer…
The General Theory of Bolometer Performance
A general phenomenological theory of the static and dynamic behavior of bolometers is presented. The theory assumes as given the fundamental relations between the temperature and resistance of the bolometer, and the past history of the power dissipated within it. From these basic properties are derived a number of the…
Some New Results on Antiferromagnetism and Ferromagnetism
1. The study of the thermomagnetic properties of a natural single crystal of rhomobohedral iron sesquioxide, ${\mathrm{Fe}}_{2}$${\mathrm{O}}_{3}$, by Pauthenet, confirms the hypothesis of the superposition of a fundamental antiferromagnetism and a parasitic ferromagnetism. Below 260\ifmmode^\circ\else\textdegree\fi{}…
Magnetic Spectra of Ferrites
A brief discussion is given of the meaning of initial permeability, the principles of its measurement, and the nature of "dimensional resonance." In considering magnetic spectra containing only a single resonance, typical data on sintered ferrites and on finely divided ferrite powders are reviewed, and some of the the…
Neutron Diffraction Studies of Various Transition Elements
Neutron diffraction measurements are reported on a series of transition elements as an investigation into their magnetic structures. Scattering data have been taken for W, Mo, Nb, V, Cr, Mn, and Fe at various temperatures as low as 4.2\ifmmode^\circ\else\textdegree\fi{}K, and these data are interpreted in terms of the…
The Inhibition of the Corrosion of Iron by Some Anodic Inhibitors
Inhibitors having relatively strong oxidizing anions, such as sodium chromate and nitrite, passivate iron both in the presence of air and in deaerated solutions. Much weaker oxidizing agents such as sodium tungstate and molybdate behave similarly to chromate and nitrite in the presence of air but do not prevent corros…
El tercer congreso internacional de química del cemento
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Kennlinien und auswahl von entstaubern
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Wirtschaftlicher wertvergleich der festigkeiten bei vermahlung von zementen
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The Permalloy Problem
In attempting to explain the unusual magnetic properties of the iron-nickel alloys, single crystals of alloys containing 35 to 100 percent nickel were prepared, and measurements made of the magnetic crystal anisotropy and magnetostriction as dependent on cooling rate. It is confirmed that there is a large effect of co…
Hall Effect in Ferromagnetic Materials
Experimental results are reviewed for Fe, Co, Ni, the Co-Ni and Ni-Cu alloy series. Most of the measurements were made at room temperature. In the case of Ni, data are available from about 10\ifmmode^\circ\else\textdegree\fi{}K to 800\ifmmode^\circ\else\textdegree\fi{}K.In every case studied, the Hall emf consists of…
Neutron Diffraction Studies of Zinc Ferrite and Nickel Ferrite
The chemical and magnetic structures of zinc ferrite and nickel ferrite have been investigated at room temperature by means of neutron diffraction. In agreement with previous x-ray investigations zinc ferrite has been found to possess a completely regular spinel structure with an oxygen parameter of 0.385\ifmmode\pm\e…
A new method of concentrating and cleaning diatoms and other organisms
"A new method of concentrating and cleaning diatoms and other organisms." Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen, 12(1), pp. 276–277
Concrete for Radiation Shielding
First Name is required invalid characters Last Name is required invalid characters Email Address is required Invalid Email Address Please select a country... Afghanistan Åland Islands Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua And Barbuda Argentina Armenia Aruba Australia Austria Azerbai…
Oxidation of Metals at High Temperatures
The available data on the oxidation rates of pure metals from 300° to 1000°C have been analyzed in terms of concentrations of defects in the oxide structures and defect diffusion coefficients. Quantitative agreement with the diffusion theory is obtained in the cases of p ‐type oxides such as cuprous oxide and nickel o…
Physical properties and atomic arrangements in crystals
A survey is given of the relation between four physical properties of crystals and their structural characters. The properties discussed are the magnetic, optical, piezoelectric and elastic. The well-established relations between ( a ) diamagnetic anisotropy and molecular orientation and ( b ) paramagnetic anisotropy…
A PRISMATIC SUBSTRUCTURE FORMED DURING SOLIDIFICATION OF METALS
Single crystals of tin grown from the melt under a wide range of conditions are shown to exhibit a fibrous structure which manifests itself as parallel ridges ("corrugations") on the free surface of the specimen and as a hexagonal network ("hexagonal cells") on the growing solid–liquid interface. The center of each ce…
Paramagnetic resonance
After a brief introduction a general account is given of the main phenomena associated with electronic magnetic resonance. Two chapters on line width and experimental technique review the problems involved in detection of the resonance phenomena. A short account of the theory of paramagnetism of the solid state follow…
Sodium Borohydride, Its Hydrolysis and its Use as a Reducing Agent and in the Generation of Hydrogen1
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSodium Borohydride, Its Hydrolysis and its Use as a Reducing Agent and in the Generation of Hydrogen1H. I. Schlesinger, Herbert C. Brown, A. E. Finholt, James R. Gilbreath, Henry R. Hoekstra, and Earl K. HydeCite this: J. Am. Chem. Soc. 1953, 75, 1, 215–219Publication Date (…