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Amorphous CaO · Al2O3 fibers by melt extraction
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 1996Abstract A novel melt extraction technique has been used to produce fine calcium aluminate (CaO · Al 2 O 3 ) fibers with wheel velocities of 1.5–65 m s −1 . The geometry of the fibers depends on the wheel velocity; at speeds −1 uniform diameter fibers were obtained, whereas at higher velocities Rayleigh waves formed on the fibers owing to ...
R A L Drew, J O Ström-Olsen
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Adhesion interaction on melt extraction from pendant drop
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2001Abstract 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 +2 more
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Melt extraction processing of structural Y2O3–Al2O3 fibers
Journal of the European Ceramic Society, 2000Compounds 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.
R A L Drew
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Melt extraction in the Earth's mantle: Constraints from U–Th–Pa–Ra studies in oceanic basalts
Earth and Planetary Science Letters, 2006 International audienceU-series studies in oceanic basalts are critical for understanding melting and melt extraction in the Earth's mantle. The combined results of a detailed geochemical study of melting and melt extraction at Theistareykir, northern ...
Andreas Stracke, Dan McKenzie
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2017
Amorphous microwires as a new category of advanced materials possess many excellent mechanical and magnetic properties, and have received considerable attention from both the research and industry community. Significant efforts have been devoted to the optimization of fabrication process, tailoring of mechanical and magnetic properties, sensor and ...
H. Wang +3 more
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Amorphous microwires as a new category of advanced materials possess many excellent mechanical and magnetic properties, and have received considerable attention from both the research and industry community. Significant efforts have been devoted to the optimization of fabrication process, tailoring of mechanical and magnetic properties, sensor and ...
H. Wang +3 more
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Production of dental alloy by the melt extraction technique
Journal of Materials Science, 1978Filaments of a commercial dental alloy (Ag3Sn) have been produced using the technique of pendant drop melt extraction. The filaments are 50 μm in diameter with a mean grain size of 5μm. Both the mechanical and structural properties of these wires have been determined to show that the results are consistent with those predicted in a previous study on ...
J. V. Wood, S. C. King
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The importance of melt extraction for tracing mantle heterogeneity
Geochimica et Cosmochimica Acta, 2009Numerous isotope and trace element studies of mantle rocks and oceanic basalts show that the Earth’s mantle is heterogeneous. The isotopic variability in oceanic basalts indicates that most mantle sources consist of complex assemblages of two or more components with isolated long-term chemical evolution, on both global and local scales.
Andreas Stracke, Bernard Bourdon
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Fine metallic and ceramic fibers by melt extraction
Materials Science and Engineering: A, 1994Abstract 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 +4 more
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Fundamentals of fibre formation during melt extraction
Materials Science and Engineering: A, 1991Abstract Investigations on fibre formation at melt extraction of a eutectic AlCu 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 +3 more
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Fine fibres by melt extraction
Materials Science and Engineering: A, 1994Abstract 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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