Subsolidus phase relations of the SrO-SbOx-CuO system at 1140 K in air

The subsolidus phase relations of the SrO-SbOx-CuO system were investigated in air. The samples were equilibrated at 1140 K. Under these conditions, 7 binary oxide phases are stable: Sr2CuO3, SrCuO2, Sr14Cu24O41- delta , CuSb2O6, SrSb2O6, Sr2Sb2O7 and Sr7Sb2O12. The ternary section contains 10 three...

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Veröffentlicht in:	Journal of alloys and compounds 2014-01, Vol.582, p.674-679
Hauptverfasser:	GRIVEL, J.-C, NORBY, P, ANDERSEN, N. H
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloys Approximation Balancing Binary systems Condensed matter: electronic structure, electrical, magnetic, and optical properties COPPER OXIDE Cross-disciplinary physics: materials science rheology Exact sciences and technology Ferrimagnetism MAGNETIC PERMEABILITY Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Materials science OXIDES PERMEABILITY Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Phase diagrams of other materials PHASES Physics Saturation moments and magnetic susceptibilities SUPERCONDUCTIVITY
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Zusammenfassung:	The subsolidus phase relations of the SrO-SbOx-CuO system were investigated in air. The samples were equilibrated at 1140 K. Under these conditions, 7 binary oxide phases are stable: Sr2CuO3, SrCuO2, Sr14Cu24O41- delta , CuSb2O6, SrSb2O6, Sr2Sb2O7 and Sr7Sb2O12. The ternary section contains 10 three-phase regions. A new ternary oxide phase with an approximate Sr3Sb2CuO9 composition of was identified. It structure is related to that of Sr8W3CuO18. This phase is not superconducting above 2 K. Instead, the magnetic susceptibility indicates onset of weak ferro- or ferrimagnetism at T approximately 30 K.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/j.jallcom.2013.08.054