CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La
                        2
                        O
                        3
                        . WO
                        3
                         AND 5La
                        2
                        O
                        3
                        . 2WO
                        3
                        .

Masahiro Yoshimura; A. Rouanet; F. Sibieude

CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La ₂ O ₃ . WO ₃ AND 5La ₂ O ₃ . 2WO ₃ .

Masahiro Yoshimura, A. Rouanet, F. Sibieude

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The system La//2O//3-WO//3 was studied in detail by solid state reaction, co-fusion, annealing and high-temperature x-ray diffraction. Two cubic fluorite-related phases have been found: 3La//2O//3. WO//3 and 5La//2O//3. 2WO//3. The 3:1 compound has a C-type b. c. c. structure. The new compound, 5:2, was identified as a pyrochlore-related f. c. c. structure. The 3:1 compound is stable above 1740 degree C up to the melting point. Below 1740 degree C it decomposes into the 5:2 compound and La//2O//3. The 5:2 compound is stable up to 1780 degree C, and appears to decompose into the 3:1 compound and the 3:2 compound at higher temperatures. Refs.

Original language	English
Pages (from-to)	227-234
Number of pages	8
Journal	High Temperatures - High Pressures
Volume	7
Issue number	2
Publication status	Published - 1975 Jan 1

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Physical and Theoretical Chemistry

Cite this

Yoshimura, M., Rouanet, A., & Sibieude, F. (1975). CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La ₂ O ₃ . WO ₃ AND 5La ₂ O ₃ . 2WO ₃ . High Temperatures - High Pressures, 7(2), 227-234.

Yoshimura, Masahiro ; Rouanet, A. ; Sibieude, F. / CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La ₂ O ₃ . WO ₃ AND 5La ₂ O ₃ . 2WO ₃ . In: High Temperatures - High Pressures. 1975 ; Vol. 7, No. 2. pp. 227-234.

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title = " CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La 2 O 3 . WO 3 AND 5La 2 O 3 . 2WO 3 . ",

abstract = "The system La//2O//3-WO//3 was studied in detail by solid state reaction, co-fusion, annealing and high-temperature x-ray diffraction. Two cubic fluorite-related phases have been found: 3La//2O//3. WO//3 and 5La//2O//3. 2WO//3. The 3:1 compound has a C-type b. c. c. structure. The new compound, 5:2, was identified as a pyrochlore-related f. c. c. structure. The 3:1 compound is stable above 1740 degree C up to the melting point. Below 1740 degree C it decomposes into the 5:2 compound and La//2O//3. The 5:2 compound is stable up to 1780 degree C, and appears to decompose into the 3:1 compound and the 3:2 compound at higher temperatures. Refs.",

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Yoshimura, M, Rouanet, A & Sibieude, F 1975, ' CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La ₂ O ₃ . WO ₃ AND 5La ₂ O ₃ . 2WO ₃ . ', High Temperatures - High Pressures, vol. 7, no. 2, pp. 227-234.

CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La ₂ O ₃ . WO ₃ AND 5La ₂ O ₃ . 2WO ₃ . . / Yoshimura, Masahiro; Rouanet, A.; Sibieude, F.

In: High Temperatures - High Pressures, Vol. 7, No. 2, 01.01.1975, p. 227-234.

Research output: Contribution to journal › Article › peer-review

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AU - Yoshimura, Masahiro

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AU - Sibieude, F.

PY - 1975/1/1

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N2 - The system La//2O//3-WO//3 was studied in detail by solid state reaction, co-fusion, annealing and high-temperature x-ray diffraction. Two cubic fluorite-related phases have been found: 3La//2O//3. WO//3 and 5La//2O//3. 2WO//3. The 3:1 compound has a C-type b. c. c. structure. The new compound, 5:2, was identified as a pyrochlore-related f. c. c. structure. The 3:1 compound is stable above 1740 degree C up to the melting point. Below 1740 degree C it decomposes into the 5:2 compound and La//2O//3. The 5:2 compound is stable up to 1780 degree C, and appears to decompose into the 3:1 compound and the 3:2 compound at higher temperatures. Refs.

AB - The system La//2O//3-WO//3 was studied in detail by solid state reaction, co-fusion, annealing and high-temperature x-ray diffraction. Two cubic fluorite-related phases have been found: 3La//2O//3. WO//3 and 5La//2O//3. 2WO//3. The 3:1 compound has a C-type b. c. c. structure. The new compound, 5:2, was identified as a pyrochlore-related f. c. c. structure. The 3:1 compound is stable above 1740 degree C up to the melting point. Below 1740 degree C it decomposes into the 5:2 compound and La//2O//3. The 5:2 compound is stable up to 1780 degree C, and appears to decompose into the 3:1 compound and the 3:2 compound at higher temperatures. Refs.

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Yoshimura M, Rouanet A, Sibieude F. CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La ₂ O ₃ . WO ₃ AND 5La ₂ O ₃ . 2WO ₃ . High Temperatures - High Pressures. 1975 Jan 1;7(2):227-234.

CHARACTERIZATION AND HIGH-TEMPERATURE PHASE RELATIONS OF 3La ₂ O ₃ . WO ₃ AND 5La ₂ O ₃ . 2WO ₃ .

Abstract

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