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Rare Earth Compounds

Production method for making rare earth compounds

Production method for making rare earth compounds

... a rare earth compound, such as a earth-transition metal permanent magnet compound, without the need for producing rare earth metal as a process step, comprises carbothermically reacting ...

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Production method for making rare earth compounds

Production method for making rare earth compounds

... a rare earth compound, such as a earth-transition metal permanent magnet compound, without the need for producing rare earth metal as a process step, comprises carbothermically reacting ...

5

Electronic Properties of Rare Earth Monopnictides

Electronic Properties of Rare Earth Monopnictides

... (12) Where D, S, Y, D*and S* are the constants, which depend upon the crystal structure of compounds. The numerical values of these constants for these materials are 0.0308, 0.089, 0.094, 0.894 and 19934.75 ...

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Thermoelectric Properties of p Type Fe0 9Mn0 1Si2 with Rare Earth Oxide Addition

Thermoelectric Properties of p Type Fe0 9Mn0 1Si2 with Rare Earth Oxide Addition

... small rare earth particles around 10 nm in size were dispersed in the phase matrix, resulting in significant reduction in the thermal conductivity due to enhancement of phonon ...of rare-earth ...

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Evidence for replicate 5p core levels in photoelectron spectra of Eu metal due to nonconstant kinetic energy resonant Auger decay

Evidence for replicate 5p core levels in photoelectron spectra of Eu metal due to nonconstant kinetic energy resonant Auger decay

... the rare-earth ...valence-fluctuation compounds the occupation of the f levels of an ion fluctuates spontaneously between f n and f n ⫹ 1 on a time scale longer than that characteristic of the ...

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Geochemistry of the Rare Earth Elements (REE) Distribution in Terengganu Coastal Waters: A Study Case from Redang Island Marine Sediment

Geochemistry of the Rare Earth Elements (REE) Distribution in Terengganu Coastal Waters: A Study Case from Redang Island Marine Sediment

... the rare earth elements (REEs) of Redang Island marine sediments was conducted in August 2011 during the pre-monsoon ...for rare earth elements (REEs) using inductively coupled plasma mass ...

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Syntheses and Thermal Characterisation of Mixed (Sm-Y) Oxalates Prepared by Coprecipitation Method

Syntheses and Thermal Characterisation of Mixed (Sm-Y) Oxalates Prepared by Coprecipitation Method

... solution rare earth oxides because these oxalates are highly insoluble in ...of rare earth oxides, even if it is vigorously stirred, the conditions for formation of rare earth ...

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Solid state spectroscopy : rare earth   hybride centres in the alkaline earth fluorides

Solid state spectroscopy : rare earth hybride centres in the alkaline earth fluorides

... calcium and strontium fluoride containing cerium and pras.eo­ dymium were examined in the infrared. Typical absorption spectra obtained at liquid nitrogen temperature are reproduc­ ed in figure 3 . For each host the ...

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Dielectric Properties Of Light Rare-Earth Titanates

Dielectric Properties Of Light Rare-Earth Titanates

... perovskite compounds with a distorted cubic or orthorhombic unit cell at room temperature with four formula units per unit cell ...few compounds of this series but so far no through investigation has been ...

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Magnetic Behavior Of Light Rare – Earth Titanates

Magnetic Behavior Of Light Rare – Earth Titanates

... Abstract: Magnetic susceptibility were measured as a function of temperature in a range of 300-1000K for light rare earth Titanates. Magnetic susceptibility for these compounds follows the Curie- ...

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Electrical Transport Studies Of Rare- Earth Titanates

Electrical Transport Studies Of Rare- Earth Titanates

... This research paper reports the measurement of electrical conductivity ( σ ) and seeback coefficient (S) .At high temperature the electrical conductivity ( σ ) and seeback coefficient (S) gives an idea about conduction ...

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Multiferroic properties of rare earth manganites

Multiferroic properties of rare earth manganites

... Once the sample is cooled to the starting temperature for measurement, a surface charge is present due to the application of a high voltage. Since the pyroelectric current measurement is concerned with purely bulk ...

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Rare earth elements in Australian sediments

Rare earth elements in Australian sediments

... (Condie, 1967; Schnetzler and Philpotts, 1967; Wildeman and Haskin, 1973; Wildeman and Condie, 1973). The "steady state" model of Armstrong (1968) and Armstrong and Hein (1973), which invokes continuous exchange ...

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Thermal expansion of rare earth metals

Thermal expansion of rare earth metals

... the rare earth metals was undertaken as part of a broad program of study of these elements, the ultimate goal being better understanding of metals in ...The rare earth metals included in this ...

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Electro-Membrane Technology for Extraction of Valuable Compounds and Rare Earth Elements from the Red Mud

Electro-Membrane Technology for Extraction of Valuable Compounds and Rare Earth Elements from the Red Mud

... As it shown in Figure 1 the processing of red mud begins with the filling of stirred reactor 1 by the red mud, together with purified water and calculated amount of sodium hypochlorite. Here the general diagram shows the ...

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Electrochemical Recovery of Rare Earth Elements from Magnets: Conversion of Rare Earth Based Metals into Rare Earth Fluorides in Molten Salts

Electrochemical Recovery of Rare Earth Elements from Magnets: Conversion of Rare Earth Based Metals into Rare Earth Fluorides in Molten Salts

... is formed as the result of the chemical reaction between the additives and the RE-containing components of the magnet, will be subjected to electrolysis to extract the RE as the ca- thodic product. To overcome ...

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The Market For The "Not-So-Rare" Rare Earth Elements

The Market For The "Not-So-Rare" Rare Earth Elements

... name, rare earth metals are actually not rare at all in terms of the quantity present in the earth’s ...these rare earth elements scarce are the difficulties presented in mining and ...

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Recycling of Rare Earth Magnet Waste by Removing Rare Earth Oxide with Molten Fluoride

Recycling of Rare Earth Magnet Waste by Removing Rare Earth Oxide with Molten Fluoride

... A rare earth element isolated by using solvent extraction is precipitated as oxalates to be ...electrolysis. Rare earth metals are regenerated by using the molten salt ...electrolysis. ...

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Rare earth doping of silicon

Rare earth doping of silicon

... It is generally accepted that a higher concentration than lx lO % m ^ of erbium in silicon is not achievable ( in fact erbium has been shown to be optically inactive at these concentrations). Thus, as the maximum ...

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Method of forming magnetostrictive rods from rare earth iron alloys

Method of forming magnetostrictive rods from rare earth-iron alloys

... with rare earth elements are formed by flowing a body of rare earth- iron alloy in a crucible enclosed in a chamber maintained under an inert gas atmosphere, forcing such molten ...

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