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Concentration dependence of the refractive index for n - and p -type GaAs between 1.2 and 1.8 eV

D. D. Sell、H. C. Casey、K. W. Wecht1974-06-01Journal of Applied Physics

The refractive indices of GaAs at room temperature were determined from accurate double-beam reflectance measurements. The uncertainty in the refractive indices obtained by this technique is ±0.005. Measurements were made on high-purity n -type samples, n -type samples with free-electron concentrations from 5×1016 to…

Semiconductor materials and devicesChalcogenide Semiconductor Thin FilmsZnO doping and properties

Magnetic properties and domain structure in grain-oriented 3% Si-Fe

J. Shilling、G. L. Houze1974-06-01IEEE Transactions on Magnetics

Magnetic domain observations have been used to clarify the relationship between metallurgical structure and the core loss, permeability, and magnetostriction of grain-oriented 3% Si-Fe. Both the prediction of domain structures based on anisotropy, magnetostatics, stress, etc., and the various methods of making domain…

Magnetic Properties and ApplicationsMagnetic properties of thin filmsMicrostructure and Mechanical Properties of Steels

The Solid–Liquid Interface

R T Delves1974-06-01Physics Bulletin

D P Woodruff London: Cambridge University Press 1973 pp viii + 182 price £3.30 The behaviour of a solid–liquid interface is important to metallurgists and crystal growers. There are three approaches.

Pickering emulsions and particle stabilizationMetallurgical and Alloy ProcessesMaterial Selection and Properties

Differential scanning calorimetry of aqueous polymer solutions and gels

Elie Ahad1974-06-01Journal of Applied Polymer Science

The melting phenomena of aqueous polymer solutions and gels have been investigated by differential scanning calorimetry (DSC). The polymers used were synthetic polyacrylamide and poly(vinyl alcohol) samples as well as guar and xanthan gums. By using an empirical relation, the energy measured from the area under the me…

biodegradable polymer synthesis and properties

Bibliografía

F. Soria Santamaría、A. Nuñez Recuela1974-06-01Materiales de Construccion

Consultas técnicas

P. García de Paredes y Caibrois1974-06-01Materiales de Construccion

No disponible

Microwave Characterization of Partially Magnetized Ferrites

J.J. Green、F. Sandy1974-06-01IEEE Transactions on Microwave Theory and Techniques

In order to assist the microwave engineer in predicting the performance of partially magnetized devices, we have characterized the microwave permeability of partially magnetized materials. The real part of the tensor permeability elements, /spl mu/, /spl kappa/, and /spl mu//sub z/, depends primarily on the parameters…

Electromagnetic wave absorption materialsMagnetic Properties and Synthesis of FerritesMagnetic Properties and Applications

Temperature-dependent light-scattering studies of the Verwey transition and electronic disorder in magnetite

J. L. Verble1974-06-01Physical review. B, Solid state

The light-scattering spectra of magnetite (${\mathrm{Fe}}_{3}$${\mathrm{O}}_{4}$) have been studied as a function of temperature in an attempt to determine the role played by optical phonons in the Verwey transition. A group-theoretical analysis of the long-wavelength phonons is used to classify the normal modes in bo…

Iron oxide chemistry and applicationsMagnetic Properties and Synthesis of FerritesMultiferroics and related materials

Surface and colloid chemistry of clays

S.Lee Swartzen-Allen、Egon Matijević1974-06-01OpenAlex

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSurface and colloid chemistry of claysS. Lee Swartzen-Allen and Egon MatijevicCite this: Chem. Rev. 1974, 74, 3, 385–400Publication Date (Print):June 1, 1974Publication History Published online1 May 2002Published inissue 1 June 1974https://pubs.acs.org/doi/10.1021/cr60289a00…

Clay minerals and soil interactionsIron oxide chemistry and applications

Mechanism of Silver Sulfadiazine Action on Burn Wound Infections

Charles L. Fox、Shanta Modak1974-06-01OpenAlex

The role of silver and sulfadiazine in the mechanism of action of silver sulfadiazine on burn wound infections was investigated. Silver, but not sulfadiazine, was bound by bacteria. Sulfadiazine did not act as an antibacterial agent in low concentrations, but exhibited specific synergism in combination with subinhibit…

Nanoparticles: synthesis and applications

A conceptual model of hysteresis

Yechezkel Mualem1974-06-01OpenAlex

A conceptual model of the capillary hysteresis phenomenon is suggested. The advantage of this model is that all scanning curves are derived with the aid of simple functions from the main drying curve and the main wetting curves solely. Like the generalized approach of Enderby (1955) the present model takes into accoun…

Metallurgical Processes and ThermodynamicsMagnetic Properties and ApplicationsSolidification and crystal growth phenomena

Magnetic transition and anomalous thermal expansion in R<inf>2</inf>Fe<inf>17</inf>compounds

D. Givord、R. Lemaire1974-06-01OpenAlex

In R-Fe compounds, the magnetic properties are mainly determined by the Fe-Fe interatomic distances and the number of Fe nearest neighbors. Below the ordering temperatures, the R2Fe17compounds are generally ferromagnetic or ferrimagnetic colinear. The compounds with rare earth ions of small atomic radii, Ce2Fe17, Tm2F…

Thermal Expansion and Ionic ConductivityInorganic Chemistry and MaterialsRare-earth and actinide compounds