Results 251 to 260 of about 1,204,358 (305)

Adsorption study of aluminum oxide monohydrate and ?-aluminum oxide

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1960
1. The thermal conversion of boehmite toγ-alumina was studied by an adsorption method. Detailed structural characteristics of five samples with different H2O contents were determined. 2. The absolute isotherms for the adsorption of argon and nitrogen at −195° and n-C6H14 and C6H6 at 20° were calculated.
A. M. Rubinshtein, Yu. A. El'tekov, T. R. Brueva   +2 more
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Aluminum–aluminum oxide stylus arm

The Journal of the Acoustical Society of America, 1985
An improved stylus assembly for a phonograph cartridge is provided. The assembly includes an arm having a jeweled stylus attached to one end thereof. The arm is formed of a hollow aluminum tube which has been anodized so as to form an aluminum oxide skin about the outer surface thereof.
George Alexandrovich, J. Raymond Edinger, Alan Hofer, John Kuykendall   +3 more
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Wetting of aluminum oxide by liquid aluminum

International Journal of High Technology Ceramics, 1986
Abstract The wetting of aluminum oxide by liquid aluminum can be improved considerably by a change of the interfacial energy between the oxide and the metal. The presence of an extremely thin carbon layer at the interface between the oxide and the metal results in a significant decrease of the contact angle.
H. John, H. Hausner
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Oxidation dynamics of aluminum nanorods

Applied Physics Letters, 2013
Aluminum nanorods (Al-NRs) are promising fuels for pyrotechnics due to the high contact areas with oxidizers, but their oxidation mechanisms are largely unknown. Here, reactive molecular dynamics simulations are performed to study thermally initiated burning of oxide-coated Al-NRs with different diameters (D = 26, 36, and 46 nm) in oxygen environment ...
Ying Li, Aiichiro Nakano, Rajiv K. Kalia, Priya Vashishta   +3 more
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Aluminum Ion Diffusion in Aluminum Oxide

The Journal of Chemical Physics, 1962
The self-diffusion coefficient of aluminum has been determined in polycrystalline aluminum oxide over the range 1670° to 1905°C. Diffusion couples were employed using aluminum-26 in oxide form as a radioactive tracer. In the temperature range studied, experimental data can be represented by D = 28 exp {—[(114 000±15 000)/RT]}.
A. E. Paladino, W. D. Kingery
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Oxidation of Aluminum in Ozonated Water

Physica Scripta, 2004
The oxidation of silicon and copper alloyed aluminum thin films in ozonated water was studied. Experiments were performed in a wet bench at different temperatures. The oxidation was studied mainly by optical methods and sheet resistance measurements. The films oxidized only slightly at 5 and 15°C. At 25 and 35°C an oxide film formed faster.
Ritala, Heini, Solehmainen, Kimmo, Grönberg, Leif   +2 more
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Ferrocyanide adsorption on aluminum oxides

Journal of Colloid and Interface Science, 2004
Ferrocyanide (Fe(CN)6(4-)) adsorption onto gamma-alumina ( gamma-Al2O3(s) ) and gibbsite (Al(OH)3(s)) was investigated over a wide pH range and at various solid loadings. Batch experiments were performed using 100-ml solutions (I = 0.01 M NaCl) dosed with 1.0 mgl(-1) Fe(CN)6(4-) as CN.
Joseph T, Bushey, David A, Dzombak
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Structure of Amorphous Aluminum Oxide

Physical Review Letters, 2009
Whereas prototypical Al(2)O(3) is not a glass former, amorphous Al(2)O(3) can be formed as thin films through vapor deposition and can serve as a structural model for the Al(2)O(3) glass. The first two-dimensional solid-state NMR experiments for amorphous Al(2)O(3) thin film reveal that four- and five-coordinated species are predominant (95%), while ...
Lee, S.K., Lee, S.B., Park, S.Y. Park, Sunyoung, Yi, Y.S., Ahn, C.W.   +4 more
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Oxidation and ignition of aluminum nanomaterials

Physical Chemistry Chemical Physics, 2013
The oxidation and ignition of aluminum nanoparticles with a mean diameter of 150 nm are investigated with the help of simultaneous thermal analysis, X-ray powder diffraction, energy dispersive X-ray spectra analysis (EDS) and scanning and transmission electron microscopy at heating rates of 2-30 K min(-1).
Fahad, Noor, Hua, Zhang, Theodosios, Korakianitis, Dongsheng, Wen   +3 more
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Oxidation and Melting of Aluminum Nanopowders

The Journal of Physical Chemistry B, 2006
Recently, nanometer-sized aluminum powders became available commercially, and their use as potential additives to propellants, explosives, and pyrotechnics has attracted significant interest. It has been suggested that very low melting temperatures are expected for nanosized aluminum powders and that such low melting temperatures could accelerate ...
Mikhaylo A, Trunov, Swati M, Umbrajkar, Mirko, Schoenitz, Joseph T, Mang, Edward L, Dreizin   +4 more
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