Subsolidus phase relations of the SrO–WO3–CuO system at 800 deg. C in air
Publication: Research - peer-review › Journal article – Annual report year: 2011
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Subsolidus phase relations of the SrO–WO3–CuO system at 800 deg. C in air. / Grivel, Jean-Claude; Norby, Poul.
In: Journal of Alloys and Compounds, Vol. 513, 2012, p. 304-309.Publication: Research - peer-review › Journal article – Annual report year: 2011
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TY - JOUR
T1 - Subsolidus phase relations of the SrO–WO3–CuO system at 800 deg. C in air
A1 - Grivel,Jean-Claude
A1 - Norby,Poul
AU - Grivel,Jean-Claude
AU - Norby,Poul
PB - Elsevier BV
PY - 2012
Y1 - 2012
N2 - The subsolidus phase relations of the SrO–WO3–CuO system were investigated in air. The samples were equilibrated at 800 °C. Under these conditions, eight binary oxides are stable. The pseudo-ternary section contains two ternary oxide phases: the previously described Sr2CuWO6 phase as well as a new phase with Sr8CuW3O18 stoichiometry. The crystal structure of this new compound was solved and refined in the R-3 space group, unit cell parameters a = 5.7202 Å and c = 28.873 Å. Sr8CuW3O18 has a distorted perovskite type structure, where some of the Sr atoms are positioned at the B sites, and the composition may be given as: Sr6(Sr2CuW3)O18. There are indications of existence of a superstructure or stacking faults related to Cu/Sr ordering.
AB - The subsolidus phase relations of the SrO–WO3–CuO system were investigated in air. The samples were equilibrated at 800 °C. Under these conditions, eight binary oxides are stable. The pseudo-ternary section contains two ternary oxide phases: the previously described Sr2CuWO6 phase as well as a new phase with Sr8CuW3O18 stoichiometry. The crystal structure of this new compound was solved and refined in the R-3 space group, unit cell parameters a = 5.7202 Å and c = 28.873 Å. Sr8CuW3O18 has a distorted perovskite type structure, where some of the Sr atoms are positioned at the B sites, and the composition may be given as: Sr6(Sr2CuW3)O18. There are indications of existence of a superstructure or stacking faults related to Cu/Sr ordering.
KW - Phase equilibria
KW - X-ray diffraction
KW - Materials characterization and modeling
KW - SrO–WO3–CuO
KW - Materialekarakterisering og modellering
U2 - 10.1016/j.jallcom.2011.09.104
DO - 10.1016/j.jallcom.2011.09.104
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
VL - 513
SP - 304
EP - 309
ER -