Results 261 to 270 of about 35,440 (290)

Melt extracted MnAl and MnAlC

IEEE Transactions on Magnetics, 1980
Crystallographically isotropic fibers of ferromagnetic τ-phase in the Mn-Al and Mn-Al-C alloy systems have been prepared by rapid quenching from the liquid state by melt extraction and subsequent heat treatment. The permanent magnet parameters for the fibers are greatly improved as compared to the values previously reported for isotropic alloys.
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Preparation of Rapidly Cooled Fibers by Melt Extraction

Metallurgist, 2013
Preparation of rapidly cooled fibers by extraction of a suspended melt droplet is considered. A model of fiber crystallization on a crystallizer disk is proposed. Fiber cross section calculated and experimental data are compared.
V. N. Antsiferov, A. S. Nechaev
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Mechanisms of melt extraction during lower crustal partial melting

Journal of Metamorphic Geology, 2020
AbstractProgressive vapour‐absent partial melting of a closed rock system increases melt pressure due to an expansion in the volume of the mineral plus melt assemblage. For a locally closed system, we quantify the melt pressure increase per increment of partial melting of a metapelite using phase equilibria modelling and combine it with Mohr–Coulomb ...
Michael A. Etheridge, Nathan R. Daczko, Timothy Chapman, Catherine A. Stuart   +3 more
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Melt Extract Fibre Reinforced Sprayed Concrete

1985
The performance of melt extract and wire fibre reinforced sprayed concretes produced at three field trials in the UK is reported. An emphasis was placed on measuring properties relevant to the applications of the material and in particular the effects of in situ fibre content and fibre type.
P. J. Robins, S. A. Austin
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Adhesion interaction on melt extraction from pendant drop

Materials Science and Engineering: A, 2001
Abstract A technique of pendant drop melt extraction (PDME) is reported and certain results describing thin stainless steel fibers obtained by means of PDME were studied. Adhesion interaction between metal melt and disc-crystallizer was also considered. The adhesion work was established to be approximately 1–2 J/m2. It was shown that melt adhesion to
W. Archangelsky, S.V. Prischepov, V.A. Vasiliev   +2 more
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Melt extraction processing of structural Y2O3–Al2O3 fibers

Journal of the European Ceramic Society, 2000
Compounds in the system Y2O3-Al2O3 are promising materials for optical, electronic and structural applications. In this study, a melt extraction process with a new approach to making ceramic fibers was used to produce amorphous fibers in the Y2O3‐Al2O3 system within the 20‐30-micron size range.
E.A. Aguilar, R.A.L. Drew
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Fine metallic and ceramic fibers by melt extraction

Materials Science and Engineering: A, 1994
Abstract Techniques are described for the fabrication of metal and ceramic fibers of diameter below 20 μm by a method of melt extraction. The process is containerless and has been successfully applied to reactive metals and high temperature ceramics. The properties of the fibers, where exceptional, are reviewed.
J.O. Ström-Olsen, G. Rudkowska, P. Rudkowski, M. Allahverdi, R.A.L. Drew   +4 more
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Melt extraction from the mantle beneath spreading centers

Earth and Planetary Science Letters, 1991
Abstract Melt migration beneath a mid-oceanic spreading center must be rapid and it must focus melt to the narrow ridge axis. Porous flow models that neglect compaction of the matrix result in vertical melt flow, and can not account for melt focussing. We show that dilation, or decompaction, of the porous matrix creates a high-porosity boundary layer,
David W. Sparks, E.M. Parmentier
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Tailored Magnetic Fields in the Melt Extraction of Metallic Filaments

Metallurgical and Materials Transactions B, 2008
Porous bodies that are resistant to corrosion at high temperatures and thermal shock may be produced from metallic fibers. In order to accomplish reasonable homogeneity and high porosity, the cross-sectional area of the fibers and the width of distribution thereof need to be small. This article studies two techniques for making fibers.
Cramer, A., Galindo, V., Gerbeth, G., Priede, J., Bojareviecs, A., Gelfgat, Y., Andersen, O., Kostmann, C., Stephani, G.   +8 more
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Melt extraction of short metallic filaments: Fibre formation process revisited

Journal of Materials Processing Technology, 2008
This article presents experimental results of the extraction of metallic fibres from the surface of a melt pool. A low-melting alloy was used in a model facility to produce filaments of equal length. Operational parameters such as wheel speed and feed rate were varied to yield thin fibres.
Cramer, A., Gerbeth, G.
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