HONG, Kun Pyo; GOGLIO, Graziella; DEMAZEAU, Gérard; JUNG, D.-Y.

doi:10.4028/www.scientific.net/DDF.208-209.251

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HONG, Kun Pyo
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

GOGLIO, Graziella
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

DEMAZEAU, Gérard
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Defect and Diffusion Forum. 2002, vol. 208-09, p. 251-254

Trans Tech Publications

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Three (KFeMg2Si4O12, KAlFe2Si4O12, KFe4Si3O12) were prepd. by a solvothermal synthesis using a gel precursor and 2-methoxyethanol as solvent at 750° and 160 MPa during 3 days. The powder x-ray diffraction characterizations indicate that these new materials are isostructural with 1M polytype of phlogopite mica and exhibit a layered structure. Also the IR spectra confirm the absence of hydroxyls groups in the structure, which improves the thermal stability of the materials. Finally the obsd. magnetic behaviors are consistent with low dimensionality magnetism.< Leer menos

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Layered Oxide

Magnetism

Phyllosiloxide

Solvothermal Synthesis

Supercritical Conditions

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Low dimensionality magnetism in new layered oxides: the phyllosiloxides

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