Identification of binary compounds in the system Ce2O3WO3

Yoshimura, Masahiro; Sibieude, F.; Rouanet, A.; Foëx, M.

doi:10.1016/0022-4596(76)90037-2

Cited by 56 publications

(42 citation statements)

References 10 publications

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“…In addition, a high-temperature tetragonal form has been synthesized by Yoshimura, Sibieude, Rouanet & Foex (1975) as well as a ~ metastable phase. Among all these compounds, the only resolved structure is that of Nd2WO 6 (occurring from CeWO 6 to HoWO6).…”

Section: Resultsmentioning

confidence: 99%

The structure of yttrium tungstate ε-Y2WO6

Beaury¹,

Faucher²,

Sagey³

1981

Acta Crystallogr Sect B

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The high-temperature polymorph &Y2WO6 is orthorhombic, space group P212121, with a = 8.591 (5), b = 20.840 (10), c = 5.233 (5) .A,Z= 8, Din= 6.38, Dc 6.49 Mg m -a. The structure was determined at room temperature from 454 diffractometer intensities and refined to R = 0.067. The W atoms are octahedrally coordinated and far apart from each other. The four non-equivalent Y atoms have an eightfold (3) and sevenfold (1) coordination number. Reference is made to the fluorescence spectrum of the Eu-doped compound and a comparison is made with the homologous compounds Ln2WO6 (Ln = La to Lu).

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Section: Resultsmentioning

confidence: 99%

The structure of yttrium tungstate ε-Y2WO6

Beaury¹,

Faucher²,

Sagey³

1981

Acta Crystallogr Sect B

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“…However, they were not tne single phase but coexisted with La 6 WO 12 , which is a cubic phase related to the fluorite phase [10][11][12]. Figure 3 is clearly showing that the sample 0.2 Sr(Li 2/5 W 3/5 )O 3 -0.8 La(Li 3/5 W 2/5 )O 3 was the mixture of the Perovskite phase and La 6 WO 12 .…”

Section: Resultsmentioning

confidence: 88%

Melt synthesis and characterization of complexed perovskite-oxides in the system of A2+(B+ 2/5B6+ 3/5)O3 - A3+(B+ 3/5B6+ 2/5)O3

et al. 2006

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In order to synthesize various Perovskite ABO 3 type compounds and their solid solutions, we have applied a novel "melt synthesis technique" rather than conventional solid state reaction techniques. In the melt synthesis, the mixture of oxides or their precursors is melted in a short period of time (1-60 sec) by a strong light radiation in an arc imaging furnace. A spherical molten sample where multiple cations were mixed homogeneously was directly solidified on a copper hearth with a rapid cooling of 10 2 K/sec. Solid solutions based upon 1:1 ordered Perovskite in the system of Sr(Li 2/5 W 3/5 )O 3 -La(Li 3/5 W 2/5 )O 3 were synthesized in this technique.

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“…Although cerium ions in the crystalline tungstates such as Ce 2 W 2 O 9 , Ce 2 (WO 4 ) 3 , and Ce 4 W 9 O 33 usually exist in a trivalent state [9], it is possible for the cerium ion to be in the tetravalent state by introducing an amorphous phase [10]. Furthermore, it is expected that double charge transfers of O 2p -Ce 4f and O 2p -W 5d bring about a brilliant yellow hue in the materials, due to the coexistence of Ce 4+ and W 6+ in the amorphous state.…”

Section: Introductionmentioning

confidence: 99%