Results 261 to 270 of about 36,266 (311)

Fine fibres by melt extraction

Materials Science and Engineering: A, 1994
Abstract Methods for manufacturing fine fibres of metals and ceramics below 20 μm diameter are described. Some analysis of the fabrication process is given as well as a description of properties of the fibres. A brief account is also given of selected applications of the materials.
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Fundamentals of fibre formation during melt extraction

Materials Science and Engineering: A, 1991
Abstract Investigations on fibre formation at melt extraction of a eutectic AlCu alloy and a heat resistant steel (type 304) reveal that the process can be described by a simple solidification model for intermediate cooling. In this case it is necessary to consider a meniscus being formed at the extraction edge of the disc.
G. Lotze, G. Stephani, W. Löser, H. Fieldler   +3 more
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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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