Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Non-Crystalline Solids. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Non-Crystalline Solids, 544, 2020 DOI: 10.1016/j.jnoncrysol.2020.120184
Accepted author manuscript, 2.15 MB, Word document
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Composition-structure-property effects of antimony in soda-lime-silica glasses
AU - Chen, T.-Y.
AU - Rautiyal, P.
AU - Vaishnav, S.
AU - Gupta, G.
AU - Schlegl, H.
AU - Dawson, R.J.
AU - Evans, A.W.
AU - Kamali, S.
AU - Johnson, J.A.
AU - Johnson, C.E.
AU - Bingham, P.A.
N1 - This is the author’s version of a work that was accepted for publication in Journal of Non-Crystalline Solids. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Non-Crystalline Solids, 544, 2020 DOI: 10.1016/j.jnoncrysol.2020.120184
PY - 2020/9/15
Y1 - 2020/9/15
N2 - Float glass-type SiO 2-Na 2O-CaO glasses with 0 – 10 mol% Sb2O3 were melted and their compositional, structural, thermal and optical properties characterised. All glasses were X-ray amorphous and increasing Sb2O3 content progressively decreased glass transition temperature (Tg) and dilatometric softening point (T d), despite increases in Al2O3 content from greater crucible corrosion. 121Sb Mössbauer spectroscopy confirmed that Sb was predominantly incorporated as Sb 3+ (Sb 3+/ΣSb ~ 0.9) and Raman spectroscopy showed that Sb substantially decreased average (Si, Al)-O Qn speciation. Both techniques confirmed that Sb3+ ions were incorporated in trigonal pyramidal [:SbO 3] polyhedra. XRF and Raman spectroscopies confirmed that SO 3 content decreased with increasing Sb2O3 content. TGA analysis showed, as a linear function of Sb2O3 content, mass gain commencing at 700°C, reaching a maximum at 1175°C, then mass loss above 1175°C, consistent with oxidation (Sb3+ → Sb5+) then reduction (Sb5+ → Sb3+). The TGA samples were shown to have attained or approached Sb redox equilibrium during measurement. Optical absorption spectroscopy (UV-Vis-nIR) showed red-shifts of the UV absorption edge with increasing Sb 2O 3 content, consistent with increasing intensity of far-UV absorption bands from Sb3+ and Sb5+ s→p transitions. UV-Vis-nIR fluorescence spectroscopy evidenced a broad luminescence band centred at ~25,000 cm−1, attributed to the 3P 1→ 1S 0 transition of Sb 3+, which is Stokes shifted by ~15,000 cm −1 from the 1S0→ 3P1 absorption at ~40,000 cm−1. The most intense emission occurred at 0.5 mol% Sb 2O3, with concentration quenching reducing luminescence intensities at higher Sb 2O3 contents. Additions of Sb2O3 to float-type soda-lime-silica glasses could thus enable lower melting energies and/or new solar energy applications.
AB - Float glass-type SiO 2-Na 2O-CaO glasses with 0 – 10 mol% Sb2O3 were melted and their compositional, structural, thermal and optical properties characterised. All glasses were X-ray amorphous and increasing Sb2O3 content progressively decreased glass transition temperature (Tg) and dilatometric softening point (T d), despite increases in Al2O3 content from greater crucible corrosion. 121Sb Mössbauer spectroscopy confirmed that Sb was predominantly incorporated as Sb 3+ (Sb 3+/ΣSb ~ 0.9) and Raman spectroscopy showed that Sb substantially decreased average (Si, Al)-O Qn speciation. Both techniques confirmed that Sb3+ ions were incorporated in trigonal pyramidal [:SbO 3] polyhedra. XRF and Raman spectroscopies confirmed that SO 3 content decreased with increasing Sb2O3 content. TGA analysis showed, as a linear function of Sb2O3 content, mass gain commencing at 700°C, reaching a maximum at 1175°C, then mass loss above 1175°C, consistent with oxidation (Sb3+ → Sb5+) then reduction (Sb5+ → Sb3+). The TGA samples were shown to have attained or approached Sb redox equilibrium during measurement. Optical absorption spectroscopy (UV-Vis-nIR) showed red-shifts of the UV absorption edge with increasing Sb 2O 3 content, consistent with increasing intensity of far-UV absorption bands from Sb3+ and Sb5+ s→p transitions. UV-Vis-nIR fluorescence spectroscopy evidenced a broad luminescence band centred at ~25,000 cm−1, attributed to the 3P 1→ 1S 0 transition of Sb 3+, which is Stokes shifted by ~15,000 cm −1 from the 1S0→ 3P1 absorption at ~40,000 cm−1. The most intense emission occurred at 0.5 mol% Sb 2O3, with concentration quenching reducing luminescence intensities at higher Sb 2O3 contents. Additions of Sb2O3 to float-type soda-lime-silica glasses could thus enable lower melting energies and/or new solar energy applications.
KW - antimony
KW - glass
KW - Mossbauer
KW - Raman
KW - soda-lime-silica
KW - Absorption spectroscopy
KW - Alumina
KW - Aluminum corrosion
KW - Aluminum metallography
KW - Aluminum oxide
KW - Amorphous silicon
KW - Antimony compounds
KW - Calcium oxide
KW - Fluorescence spectroscopy
KW - Glass
KW - Glass transition
KW - Light absorption
KW - Lime
KW - Luminescence
KW - Raman spectroscopy
KW - Red Shift
KW - Silica
KW - Silicon
KW - Sodium compounds
KW - Solar energy
KW - Composition structure
KW - Concentration quenching
KW - Dilatometric softening
KW - Luminescence band
KW - Luminescence intensity
KW - Soda-lime silica glass
KW - Solar energy applications
KW - Ssbauer spectroscopies
KW - Antimony
U2 - 10.1016/j.jnoncrysol.2020.120184
DO - 10.1016/j.jnoncrysol.2020.120184
M3 - Journal article
VL - 544
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
M1 - 120184
ER -