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Melt-Spun Ribbons (melt-spun + ribbon)

Distribution by Scientific Domains
Chemistry50%

Selected Abstracts

ChemInform Abstract: Magnetocaloric Effect in LaFe11.8-xCoxSi1.2 Melt-Spun Ribbons.

CHEMINFORM, Issue 14 2008
A. Yan
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

In-situ small-angle scattering study on the formation of a nano­crystalline soft-magnetic alloy

JOURNAL OF APPLIED CRYSTALLOGRAPHY, Issue 3-1 2000
D. R. Dos Santos
A detailed study is presented on the nanocrystallization of the amorphous alloy Fe86Zr7Cu 1B6 (indices indicate at. %). Melt-spun ribbons were rapidly annealed by Joule heating, and the electrical resistance showed strong variations during thermal treatment. X-ray diffraction patterns indicate that these variations are related to the nucleation and growth of ,-Fe nanocrystals, and from peak profile analysis we obtained the average grain size and crystalline volume fraction for different annealing currents. The disorder-order transition was studied by in-situ small-angle X-ray scattering during conventional furnace treatments. SAXS intensity evolution for different temperatures, both below and above the crystallization temperature of the alloy, showed that a fast atomic rearrangement leads to the formation of atomic clusters before crystallization. The evolution of the size distribution function of these clusters as a function of time and temperature was obtained assuming a polydisperse system of spherical particles. [source]

Phase structure and crystallization of the bulk glassy FeCoZrWB alloys

PHYSICA STATUS SOLIDI (C) - CURRENT TOPICS IN SOLID STATE PHYSICS, Issue 5 2010
Katarzyna Pawlik
Abstract In the present work, the high-energy X-ray diffraction (XRD) measurements performed using monochromatic synchrotron radiation of 112 keV (,=0.110696 Å), were utilized to compare a phase constitution of melt-spun ribbon and suction-cast rods of Fe61Co10+xZr5W4,xB20 alloys (where x = 0, 2, 3 at.%). For bulk amorphous samples of the investigated alloys DSC studies allowed to determine the activation energies of crystal growth and differences in crystallization kinetics at constant heating rates. (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]

TEM Study of Precipitates in Melt-Spun Mg-Zn-Y-La Alloys,

ADVANCED ENGINEERING MATERIALS, Issue 6 2005
J. Rao
Recently, nano-crystalline MgZn1Y2 alloys exhibiting excellent tensile yield strength elongation ratio have been developed as a consequence of preliminary investigations of alloy compositions using melt-spun ribbons. Their results show that the novel long-period hexagonal atomic configurations in the Mg-Ln-Zn alloys as well as the atomic scale enrichment of Ln and Zn elements into the misfit atomic array sites indicates the possibility that a high-strength Mg-based alloy is developed by the control of the novel structure and the atomic scale segregation mode. [source]