Structural analysis of molten bismuth germanate compounds

Susumu Takeda; Kazumasa Sugiyama; Yoshio Waseda

doi:10.1143/JJAP.32.5633

Structural analysis of molten bismuth germanate compounds

Susumu Takeda, Kazumasa Sugiyama, Yoshio Waseda

Materials Development Division

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

8 Citations (Scopus)

Abstract

Structural analysis of molten Bi₄Ge₃O₁₂(2Bi₂O₃3GO₂), Bi₂GeO₅(Bi₂O₃GeO₂) and Bi₁₂GeO₂₀(6Bi₂O₃GeO₂) has been carried out using the high-temperature energy dispersive X-ray diffraction (EDXD) method. The local ordering unit structure of Ge04 tetrahedra is recognized in the bismuth germanate (BGO) melts of the three compositions. On the other hand, distorted octahedral unit structure of BiO₆ is suggested in the Bi2Ge05 melt. Specific heats of these three BGO compounds have also been estimated from the differential scanning calorimetry (DSC) measurements, but no particular temperature dependence is detected after melting.

Original language	English
Pages (from-to)	5633-5636
Number of pages	4
Journal	Japanese journal of applied physics
Volume	32
Issue number	12 R
DOIs	https://doi.org/10.1143/JJAP.32.5633
Publication status	Published - 1993 Dec

Keywords

BGO
BiGeO
BiGeO
BiGeO
DSC
EDXD
Energy dispersive X-ray analysis
Molten state
Structural analysis

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.32.5633

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title = "Structural analysis of molten bismuth germanate compounds",

abstract = "Structural analysis of molten Bi4Ge3O12(2Bi2O33GO2), Bi2GeO5(Bi2O3GeO2) and Bi12GeO20(6Bi2O3GeO2) has been carried out using the high-temperature energy dispersive X-ray diffraction (EDXD) method. The local ordering unit structure of Ge04 tetrahedra is recognized in the bismuth germanate (BGO) melts of the three compositions. On the other hand, distorted octahedral unit structure of BiO6 is suggested in the Bi2Ge05 melt. Specific heats of these three BGO compounds have also been estimated from the differential scanning calorimetry (DSC) measurements, but no particular temperature dependence is detected after melting.",

keywords = "BGO, BiGeO, BiGeO, BiGeO, DSC, EDXD, Energy dispersive X-ray analysis, Molten state, Structural analysis",

author = "Susumu Takeda and Kazumasa Sugiyama and Yoshio Waseda",

year = "1993",

month = dec,

doi = "10.1143/JJAP.32.5633",

language = "English",

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journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "12 R",

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TY - JOUR

T1 - Structural analysis of molten bismuth germanate compounds

AU - Takeda, Susumu

AU - Sugiyama, Kazumasa

AU - Waseda, Yoshio

PY - 1993/12

Y1 - 1993/12

N2 - Structural analysis of molten Bi4Ge3O12(2Bi2O33GO2), Bi2GeO5(Bi2O3GeO2) and Bi12GeO20(6Bi2O3GeO2) has been carried out using the high-temperature energy dispersive X-ray diffraction (EDXD) method. The local ordering unit structure of Ge04 tetrahedra is recognized in the bismuth germanate (BGO) melts of the three compositions. On the other hand, distorted octahedral unit structure of BiO6 is suggested in the Bi2Ge05 melt. Specific heats of these three BGO compounds have also been estimated from the differential scanning calorimetry (DSC) measurements, but no particular temperature dependence is detected after melting.

AB - Structural analysis of molten Bi4Ge3O12(2Bi2O33GO2), Bi2GeO5(Bi2O3GeO2) and Bi12GeO20(6Bi2O3GeO2) has been carried out using the high-temperature energy dispersive X-ray diffraction (EDXD) method. The local ordering unit structure of Ge04 tetrahedra is recognized in the bismuth germanate (BGO) melts of the three compositions. On the other hand, distorted octahedral unit structure of BiO6 is suggested in the Bi2Ge05 melt. Specific heats of these three BGO compounds have also been estimated from the differential scanning calorimetry (DSC) measurements, but no particular temperature dependence is detected after melting.

KW - BGO

KW - BiGeO

KW - DSC

KW - EDXD

KW - Energy dispersive X-ray analysis

KW - Molten state

KW - Structural analysis

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JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

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ER -

Structural analysis of molten bismuth germanate compounds

Abstract

Keywords

ASJC Scopus subject areas

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