Results 261 to 270 of about 503,570 (301)

Bulk Nanostructured Multicomponent Alloys

Advanced Engineering Materials, 2001
Bulk nanostructured composite materials can be obtained by partial devitrification of slowly cooled bulk glass-forming multicomponent metallic glasses or by blending a glassy matrix alloy with insoluble second-phase particles by solid state processing.
Eckert, J., Reger-Leonhard, A., Weiss, B., Heilmaier, M., Schultz, L.   +4 more
openaire   +1 more source

Nanostructured WCCo alloy prepared by mechanical alloying

Journal of Alloys and Compounds, 1996
Abstract Nanocrystalline cemented carbide powder of WCCo was directly synthesized by mechanical alloying. The structure evolution of the powders was monitored by X-ray diffraction, scanning electron microscope and thermal analysis. Results show that the formation of the compounds is controlled by an inter-diffusion reaction between elements. Powders
M.A. Xueming, J.I. Gang
openaire   +1 more source

Nanostructure characterization of mechanical alloyed and consolidated iron alloys

Materials Science and Engineering: A, 1997
High-energy ball milling (which is readily adoptable to commercial application) was used to develop sufficient quantities of nanostructured material to produce compacts capable of being measured for macroscopic properties. Characterization of the ball-milled powders show that grain boundary properties play a significant role in the overall properties ...
J. Rawers, R. Krabbe, N. Duttlinger
openaire   +1 more source

Stability of nanostructured metals and alloys

Scripta Materialia, 2004
Abstract The processes controlling the microstructural evolution of very fine grain sized metallic alloys––mostly developed by plastic deformation––are briefly reviewed. Recent work on understanding the mechanisms that inhibit localized grain boundary motion by Zener and solute drag and applying this knowledge to model systems is outlined.
openaire   +1 more source

Atomic mobility in nanostructured liquid Ga–In alloy

Journal of Physics: Condensed Matter, 2010
Nuclear spin relaxation and the Knight shift for (71)Ga, (69)Ga, and (115)In isotopes were studied by nuclear magnetic resonance (NMR) in liquid gallium-indium alloy confined to porous glass and alloy surface film and were compared with the bulk counterparts. Drastic spin relaxation acceleration under nanoconfinement was observed for the three isotopes.
E V, Charnaya, Cheng, Tien, M K, Lee, Yu A, Kumzerov   +3 more
openaire   +2 more sources

High-resolution nanostructural investigation of Zn4Sb3 alloys

Scripta Materialia, 2010
Zinc antimonides exhibit high thermoelectric figures of merit and bear great potential for power generation. To advance the understanding of the structure–property relationship in these alloys, the microstructure of a nanocrystalline Zn_4Sb_3 alloy, containing 57.29 at.% Zn, was investigated by scanning electron microscopy and atom probe tomography ...
Gault, B., Marquis, E., Saxey, David, Hughes, G., Mangelinck, D., Toberer, E., Snyder, G.   +6 more
openaire   +3 more sources

NANOSTRUCTURED TUNGSTEN-IRON ALLOY PREPARED BY ELECTRODEPOSITION

International Journal of Modern Physics B, 2006
Tungsten-iron alloy was produced by electrodeposition. The electrodeposited alloy (15 at.% W ) possesses a two-phase composite microstructure, containing a nanocrystalline phase of distorted BCC structure with a grain size between 50 to 150 nm and an amorphous phase as the matrix. TEM in-situ annealing revealed that this composite structure was stable
Chiu, Y. L., Baluc, N., Schaeublin, R.
openaire   +2 more sources

Biological Routes to Metal Alloy Ferromagnetic Nanostructures

Nano Letters, 2004
Magnetic nanoparticles have potential applications in high-density memory devices, but their complicated synthesis often requires high temperatures, expensive reagents, and postsynthesis annealing to achieve the desired magnetic properties. Current synthetic methods for magnetic nanoparticles often require post-synthetic modifications, suggesting that ...
Reiss, Brian D., Mao, Chuanbin, Solis, Daniel J., Ryan, Katherine S., Thomson, Thomas; id_orcid 0000-0002-4110-1567, Belcher, Angela M.   +5 more
openaire   +2 more sources

Microstructure and hardness of a nanostructured Fe-40Al at% alloy

Nanostructured Materials, 1999
Abstract Microstructural changes induced by ball milling under different conditions and posterior annealing in Fe-40Al at% B2 alloys have been studied. High speed milling results in more disordered samples and milling media contamination, which affects the thermal reordering.
X. Amils, J. Nogues, S. Surinach, J. Munoz, Lutterotti, Luca, M. D. Baro   +5 more
openaire   +2 more sources

Nanostructured Al90Fe5Nd5 alloy obtained by mechanical alloying

2013
Peer ...
Cardoso, Kátia Regina, García Escorial, Asunción, Botta Filho, W. J., Lieblich, Marcela   +3 more
openaire   +1 more source