High temperature behaviour of danburite-like borosilicates MB2Si2O8 (M = Ca, Sr, Ba)

L.A. Gorelova, S.K. Filatov, M.G. Krzhizhanovskaya, R.S. Bubnova

Research output

4 Citations (Scopus)

Abstract

The thermal behaviour of danburite-like phases MB2Si2O8(M = Ca, Sr, Ba) has been studied by in situ high temperature x-ray powder diffraction and heat treatments in a wide temperature range using a natural danburite (Ca) sample and synthetic samples of pekovite (Sr) and maleevite (Ba). Synthetic pekovite was obtained by solid state reactions at 900 degrees C, whereas synthetic maleevite was synthesised by crystallisation from the melt. According to the high temperature x-ray powder diffraction study, the Ca, Sr, and Ba members of the danburite group demonstrate a weak anisotropy of thermal expansion with relatively low volume thermal expansion coefficients (19, 20, and 23x10(-6) degrees C-1, respectively). Both thermal expansion coefficients and the expansion anisotropy increase with increasing size of the M2+ cations.
Original languageEnglish
Pages (from-to)189-196
Number of pages8
JournalPhysics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B
Volume56
Issue number5
DOIs
Publication statusPublished - 2015

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Thermal expansion
thermal expansion
Anisotropy
X rays
anisotropy
coefficients
Crystallization
Solid state reactions
diffraction
Temperature
Cations
heat treatment
x rays
Positive ions
Heat treatment
crystallization
solid state
cations
expansion
temperature

Cite this

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title = "High temperature behaviour of danburite-like borosilicates MB2Si2O8 (M = Ca, Sr, Ba)",
abstract = "The thermal behaviour of danburite-like phases MB2Si2O8(M = Ca, Sr, Ba) has been studied by in situ high temperature x-ray powder diffraction and heat treatments in a wide temperature range using a natural danburite (Ca) sample and synthetic samples of pekovite (Sr) and maleevite (Ba). Synthetic pekovite was obtained by solid state reactions at 900 degrees C, whereas synthetic maleevite was synthesised by crystallisation from the melt. According to the high temperature x-ray powder diffraction study, the Ca, Sr, and Ba members of the danburite group demonstrate a weak anisotropy of thermal expansion with relatively low volume thermal expansion coefficients (19, 20, and 23x10(-6) degrees C-1, respectively). Both thermal expansion coefficients and the expansion anisotropy increase with increasing size of the M2+ cations.",
author = "L.A. Gorelova and S.K. Filatov and M.G. Krzhizhanovskaya and R.S. Bubnova",
year = "2015",
doi = "10.13036/17533562.56.5.189",
language = "English",
volume = "56",
pages = "189--196",
journal = "European journal of glass science and technology. Part B, Physics and chemistry of glasses",
issn = "1753-3562",
publisher = "Society of Glass Technology",
number = "5",

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TY - JOUR

T1 - High temperature behaviour of danburite-like borosilicates MB2Si2O8 (M = Ca, Sr, Ba)

AU - Gorelova, L.A.

AU - Filatov, S.K.

AU - Krzhizhanovskaya, M.G.

AU - Bubnova, R.S.

PY - 2015

Y1 - 2015

N2 - The thermal behaviour of danburite-like phases MB2Si2O8(M = Ca, Sr, Ba) has been studied by in situ high temperature x-ray powder diffraction and heat treatments in a wide temperature range using a natural danburite (Ca) sample and synthetic samples of pekovite (Sr) and maleevite (Ba). Synthetic pekovite was obtained by solid state reactions at 900 degrees C, whereas synthetic maleevite was synthesised by crystallisation from the melt. According to the high temperature x-ray powder diffraction study, the Ca, Sr, and Ba members of the danburite group demonstrate a weak anisotropy of thermal expansion with relatively low volume thermal expansion coefficients (19, 20, and 23x10(-6) degrees C-1, respectively). Both thermal expansion coefficients and the expansion anisotropy increase with increasing size of the M2+ cations.

AB - The thermal behaviour of danburite-like phases MB2Si2O8(M = Ca, Sr, Ba) has been studied by in situ high temperature x-ray powder diffraction and heat treatments in a wide temperature range using a natural danburite (Ca) sample and synthetic samples of pekovite (Sr) and maleevite (Ba). Synthetic pekovite was obtained by solid state reactions at 900 degrees C, whereas synthetic maleevite was synthesised by crystallisation from the melt. According to the high temperature x-ray powder diffraction study, the Ca, Sr, and Ba members of the danburite group demonstrate a weak anisotropy of thermal expansion with relatively low volume thermal expansion coefficients (19, 20, and 23x10(-6) degrees C-1, respectively). Both thermal expansion coefficients and the expansion anisotropy increase with increasing size of the M2+ cations.

U2 - 10.13036/17533562.56.5.189

DO - 10.13036/17533562.56.5.189

M3 - Article

VL - 56

SP - 189

EP - 196

JO - European journal of glass science and technology. Part B, Physics and chemistry of glasses

JF - European journal of glass science and technology. Part B, Physics and chemistry of glasses

SN - 1753-3562

IS - 5

ER -