Results 251 to 260 of about 131,815 (304)

Saturation studies of nuclear acoustic resonance in aluminum

Physical Review B, 1979
Nuclear acoustic resonance has been investigated in single-crystal aluminum over a broad range of acoustic power. Saturation of both absorption and dispersion signals was observed. The shape and width of the absorption signal were found to depend on the acoustic power level. The line was found to either narrow or broaden with increasing acoustic power,
D. K. Hsu, R. G. Leisure, G. R. Ashton
openaire   +1 more source

Complex bulk modulus measurement of fluid-saturated porous aluminum

The Journal of the Acoustical Society of America, 1984
In the application of fluid-saturated porous materials to the absorption of sound it is assumed that the attenuation is enhanced by increased relative velocity between the solid matrix and the fluid. Foamed metals are expected to have a structure that is more rigid than that of other porous materials with larger concomitant absorption. The bulk modulus
Pieter S. Dubbelday, Jay Burns
openaire   +1 more source

Successive saturation of carbon steels with aluminum and boron

Metal Science and Heat Treatment, 1982
1. Boronizing of aluminized steel is expedient in the case in which the aluminum content of the coating does not exceed the concentration in Fe3Al. Boronizing should be conducted at temperatures of 1000° and higher. 2. Alloying of FeB and Fe2B with aluminum reduces the microhardness and increases the ductility of the coating.
N. G. Kaidash, P. P. Chastokolenko, L. N. Chastokolenko   +2 more
openaire   +1 more source

Ion distribution and saturation magnetization of aluminum substituted lithium ferrites

IEEE Transactions on Magnetics, 1995
Ion distribution is determined in a series of aluminum substituted lithium ferrites by carefully analyzing the powder X-ray diffraction patterns. A new finding is that Al/sup +3/'s substitute the Fe/sup +3/'s in tetrahedral sites as well as in octahedral sites of the spinel structure.
JUNG, TH, PARK, DH, KWON, SJ
openaire   +2 more sources

SOIL pH, ALUMINUM SATURATION, AND CORN GRAIN YIELD1

Soil Science, 1979
ABSTRACTAfter more than half a century of research on the effect of soil pH and aluminum toxicity on corn (Zea mays L.) growth, there still is no general agreement on whether soil pH or some measure of potential aluminum toxicity, such as aluminum saturation, should be the criterion used to ...
openaire   +1 more source

Water Sorption Characteristics of Aluminum‐ and Calcium‐saturated Soil Clays

Soil Science Society of America Journal, 1986
Abstract Water sorption by Al‐ and Ca‐saturated bentonites and soil clays with montmorillonitic, mixed, illitic, and kaolinitic mineralogy were quantitatively evaluated at water vapor pressure levels ( P/P 0 ) of 0.50, 0.90, and 0.98 by thermogravimetry ...
A. D. Karathanasis, V. P. Evangelou
openaire   +1 more source

Internal stress measurments during the saturation fatigue of polycrystalline aluminum

Materials Science and Engineering, 1982
Abstract The internal stress and the effective stress were measured using stress relaxation techniques for 99.988% purity polycrystalline aluminum containing a well-defined cellular dislocation microstructure characteristic of large amplitude low cycle fatigue.
J.C. Tsou, D.J. Quesnel
openaire   +1 more source

Large Saturation Absorption of Resonant Aluminum Metasurfaces

CLEO 2024
We experimentally demonstrate that an aluminum metasurface is prospective saturable absorber with significant modulation depth (9.56%) under a low incident fluence of 25 μJ/cm2, due to local-field enhancement by surface lattice resonance in the near-infrared.
Hailun Xie, Lili Gui, Kun Xu
openaire   +1 more source

Estimation of percent aluminum saturation from soil chemical data

Communications in Soil Science and Plant Analysis, 1984
Abstract Numerous studies since the early 1970's have shown that percent aluminum (Al) saturation of the soil ion exchange complex is a useful index for predicting the effects of Al toxicity on crop yield and root growth. However, direct measurements of percent Al saturation are unavailable for many acid soils, especially for those sampled prior to the
openaire   +1 more source

ChemInform Abstract: DEPOSITION AND DISSOLUTION OF LITHIUM‐ALUMINUM ALLOY AND ALUMINUM FROM CHLORIDE‐SATURATED LITHIUM CHLORIDE‐ALUMINUM CHLORIDE AND SODIUM CHLORIDE‐ALUMINUM CHLORIDE MELTS

Chemischer Informationsdienst, 1981
AbstractAus einer an LiCl gesättigten A1C13‐Schmelze wird auf einem A1‐Substrat eine LiAl‐Legierung abgeschieden, und zwar vorwiegend durch einen Abscheidungsprozeß und nicht über einen Implantationsmechanismus.
R. A. CARPIO, L. A. KING
openaire   +1 more source