Results 241 to 250 of about 1,257,317 (293)

Production of TiNi fibers by melt extraction

Powder Metallurgy and Metal Ceramics, 2008
The paper examines the production of TiNi fibers by pendent-drop melt extraction in vacuum. The mean effective diameter of the continuous fibers produced is 37 µm. Resistometrical investigation establishes that martensitic transformations in the fibers start at Ms = 17 °C.
A. G. Kostronov, V. N. Klimenko, M. M. Serov, N. I. Levitskii, S. V. Prishchepov, B. V. Borisov   +5 more
exaly   +2 more sources

Amorphous CaO · Al2O3 fibers by melt extraction

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 1996
Abstract 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
exaly   +2 more sources

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
openaire   +1 more source

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
exaly   +3 more sources

Melt Extracted Microwires

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, F. X. Qin, H. X. Peng, J. F. Sun   +3 more
openaire   +1 more source

Cumulate formation and melt extraction from mushy reservoirs: the "melt flush" model

2022
<p>Volcanism is the surface expression of extensive magmatic systems, with their intrusive counterpart representing ~80% of the total magma budget. Our knowledge of igneous processes therefore largely relies on our understanding of deep plutonic processes.
Marine Boulanger, Lydéric France
openaire   +1 more source

Underplating and Partial Melting: Implications for Melt Generation and Extraction

Science, 1989
The quantitative assessment of underplating and concomitant partial melting of continental crust requires the use of geologically reasonable melt fraction distributions as a function of temperature. Conductive modeling indicates that simple underplating of metapelite by basalt can yield magma bodies with melt fractions above the rheological limit of ...
openaire   +2 more sources

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.
openaire   +1 more source

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.
openaire   +1 more source

Depths of Melting and Melt Extraction Beneath Mid-Ocean Ridges as Recorded in Melt Inclusions

Mineralogical Magazine, 1994
Recent studies have shown that chemical compositions of primitive melt inclusions in olivine and plagioclase phenocrysts in mid-ocean ridge basalts (MORB) carry important information of process of melting and melt extraction beneath mid-ocean ridges (e.g., Sobolev and Shimizu, 1993).
openaire   +1 more source