57Fe Mossbauer, XRD and DTA study of the crystallization behavior of calcium aluminate glass containing iron(III)

T. Nishida; K. Goto; S. Kubuki; T. Tamaki

doi:10.1023/A:1006764510701

⁵⁷Fe Mossbauer, XRD and DTA study of the crystallization behavior of calcium aluminate glass containing iron(III)

T. Nishida, K. Goto, S. Kubuki, T. Tamaki

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

2 Citations (Scopus)

Abstract

⁵⁷Fe Mossbauer spectroscopy was applied to the crystallization study of IR-transmitting calcium aluminate glass, 60CaO·32Al₂O₃·5Fe₂O₃·3Eu₂O₃, in which Fe(III) atoms occupy tetrahedral Al(III) sites. Heat treatment of calcium aluminate glass below and above the crystallization temperature causes the formation of mayenite, 12CaO·7Al₂O₃, and brownmillerite, 4CaO·Al₂O₃·Fe₂O₃, respectively. Mossbauer spectra of the glass ceramics indicate that Fe(III) atoms substitute Al(III) sites, having less covalent Fe(III)-O bonds and more distorted Fe(III)O₄ tetrahedra than they do in the original glass. DTA revealed that crystallization of calcium aluminate glass is triggered by simultaneous cleavage of Ca-O and Al-O bonds.

Original language	English
Pages (from-to)	51-56
Number of pages	6
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	246
Issue number	1
DOIs	https://doi.org/10.1023/A:1006764510701
Publication status	Published - 2000
Externally published	Yes

All Science Journal Classification (ASJC) codes

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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Access to Document

10.1023/A:1006764510701

Cite this

@article{99d58836180c4ebebf2519a5fbb0535f,

title = "57Fe Mossbauer, XRD and DTA study of the crystallization behavior of calcium aluminate glass containing iron(III)",

abstract = "57Fe Mossbauer spectroscopy was applied to the crystallization study of IR-transmitting calcium aluminate glass, 60CaO·32Al2O3·5Fe2O3·3Eu2O3, in which Fe(III) atoms occupy tetrahedral Al(III) sites. Heat treatment of calcium aluminate glass below and above the crystallization temperature causes the formation of mayenite, 12CaO·7Al2O3, and brownmillerite, 4CaO·Al2O3·Fe2O3, respectively. Mossbauer spectra of the glass ceramics indicate that Fe(III) atoms substitute Al(III) sites, having less covalent Fe(III)-O bonds and more distorted Fe(III)O4 tetrahedra than they do in the original glass. DTA revealed that crystallization of calcium aluminate glass is triggered by simultaneous cleavage of Ca-O and Al-O bonds.",

author = "T. Nishida and K. Goto and S. Kubuki and T. Tamaki",

note = "Funding Information: This paper was financially supported by Kyushu Environmental Evaluation Association (President: Yoshimasa TAKASHIMA, Prof. Emer., Kyushu University).",

year = "2000",

doi = "10.1023/A:1006764510701",

language = "English",

volume = "246",

pages = "51--56",

journal = "Journal of Radioanalytical and Nuclear Chemistry",

issn = "0236-5731",

publisher = "Springer Netherlands",

number = "1",

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TY - JOUR

T1 - 57Fe Mossbauer, XRD and DTA study of the crystallization behavior of calcium aluminate glass containing iron(III)

AU - Nishida, T.

AU - Goto, K.

AU - Kubuki, S.

AU - Tamaki, T.

N1 - Funding Information: This paper was financially supported by Kyushu Environmental Evaluation Association (President: Yoshimasa TAKASHIMA, Prof. Emer., Kyushu University).

PY - 2000

Y1 - 2000

N2 - 57Fe Mossbauer spectroscopy was applied to the crystallization study of IR-transmitting calcium aluminate glass, 60CaO·32Al2O3·5Fe2O3·3Eu2O3, in which Fe(III) atoms occupy tetrahedral Al(III) sites. Heat treatment of calcium aluminate glass below and above the crystallization temperature causes the formation of mayenite, 12CaO·7Al2O3, and brownmillerite, 4CaO·Al2O3·Fe2O3, respectively. Mossbauer spectra of the glass ceramics indicate that Fe(III) atoms substitute Al(III) sites, having less covalent Fe(III)-O bonds and more distorted Fe(III)O4 tetrahedra than they do in the original glass. DTA revealed that crystallization of calcium aluminate glass is triggered by simultaneous cleavage of Ca-O and Al-O bonds.

AB - 57Fe Mossbauer spectroscopy was applied to the crystallization study of IR-transmitting calcium aluminate glass, 60CaO·32Al2O3·5Fe2O3·3Eu2O3, in which Fe(III) atoms occupy tetrahedral Al(III) sites. Heat treatment of calcium aluminate glass below and above the crystallization temperature causes the formation of mayenite, 12CaO·7Al2O3, and brownmillerite, 4CaO·Al2O3·Fe2O3, respectively. Mossbauer spectra of the glass ceramics indicate that Fe(III) atoms substitute Al(III) sites, having less covalent Fe(III)-O bonds and more distorted Fe(III)O4 tetrahedra than they do in the original glass. DTA revealed that crystallization of calcium aluminate glass is triggered by simultaneous cleavage of Ca-O and Al-O bonds.

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