Results 261 to 270 of about 128,460 (306)

Electro-Extraction of Lead from Alkali-Oxide Melt

Metallurgist, 2016
A method of lead electro-extraction from alkali-oxide melt for processing waste containing lead oxide and preparation of lead metal is proposed. Construction of a laboratory electrolyzer is described. Electrolysis production parameters are determined.
N. M. Barbin, T. M. Barbina
openaire   +1 more source

Partial melting, partial melt extraction and partial back reaction in anatectic migmatites

Lithos, 2001
Abstract Anatectic migmatites commonly show both prograde (entropy producing) and retrograde reactions between minerals and melt. The final textures, mineral modes and mineral chemistries are affected by four successive processes: (i) prograde partial melting and small-scale segregation into melt-rich domains and restitic domains; (ii) partial melt ...
openaire   +1 more source

Melt extraction and accumulation from partially molten rocks

Lithos, 2004
Current models for melt segregation and ascent are not adequate to accurately describe transport and accumulation in combination. We propose that transport is discontinuous and in batches, and that accumulation occurs by stepwise merging of batches. A simple numerical model of jostling spheres that merge when they touch was used to represent stepwise ...
Bons, P., Arnold, J., Elburg, M., Kalda, J., Soesoo, A., van Milligen, B.   +5 more
openaire   +2 more sources

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
openaire   +1 more source

Trace Element Geochemical Effects of Integrated Melt Extraction and ‘Shaped’ Melting Regimes

Journal of Petrology, 1995
Abstract The mixing (integration) of liquids obtained as different mass fractions of partial melting from source material of the same bulk composition, travelling along different mantle flow-lines through a melting regime, can result in deficiencies in the relative concentrations of those incompatible elements whose bulk distribution ...
openaire   +1 more source

Solid-Phase Extraction of Trace Metal Ions Using Low-Melting Extractants

Microchemical Journal, 1995
A sensitive, selective, and rapid method for the determination of metal ions after extraction of their complexes into low-melting extractants (either in molten form or by coprecipitation) is reviewed. The progress in solid-phase extraction of metal ions using low-melting extractants in the last 25 years is surveyed.
openaire   +1 more source

Melt Generation and Extraction in Mantle Diapirs

1989
The oceanic lithosphere, its physical, penological and geochemical nature, are largely a function of the magmatic processes which take place at oceanic spreading centers. An understanding of the processes of mantle melting and melt extraction is therefore central to models for the development of oceanic lithosphere.
openaire   +1 more source

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
openaire   +1 more source

Crustal melting and melt extraction, ascent and emplacement in orogens: mechanisms and consequences

Journal of the Geological Society, 2007
Significant volume of wet melting requires an influx of H 2 O-rich volatile phase. In hydrate-breakdown melting, initial melt accumulation is diffusion-controlled and melt accumulates around peritectic phases in low-pressure sites.
openaire   +1 more source

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
openaire   +1 more source