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Proceedings Paper

Nano and microcrystallites of KSbOSiO4 in glass matrix as a source of internal strain and fatal corrosion of historic turquoise glass
Author(s): T. V. Yuryeva; I. F. Kadikova; E. A. Morozova; I. B. Afanasyev; I. A. Balakhnina; N. N. Brandt; V. A. Yuryev
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Paper Abstract

Investigating long-term fatal corrosion of turquoise lead-potassium historic glass beads, we have detected micro and nano crystallites of orthorhombic KSbOSiO4 (KSS) in glass. We have come to conclusion that KSS precipitates and their clusters give rise to internal glass corrosion. K and Sb being glass dopants form KSS crystallites during glass melt cooling; tensile strain arising in the glass matrix during cooling gives rise to glass cracking and eventually to its rupture and formation of heterogeneous grains. The strain-induced diffusion of impurities, resembling internal gettering in the Si technology, explains changes in glass color. We have also detected Pb2Fe0.5Sb1.5O6.5 nano crystallites in stable yellow lead glass beads. The number density and the sizes of these crystallites are much less than those of the KSS crystallites in turquoise lead-potassium glass, they do not form large clusters; internal cracks also has not been observed in this glass. This may explain the stability of yellow lead glass. The study may be useful for predicting long-term stability of technical glasses as well as for synthesis of nano-KSS/glass composites.

Paper Details

Date Published: 30 May 2017
PDF: 18 pages
Proc. SPIE 10248, Nanotechnology VIII, 102480K (30 May 2017); doi: 10.1117/12.2265401
Show Author Affiliations
T. V. Yuryeva, The State Research Institute for Restoration (Russian Federation)
I. F. Kadikova, The State Research Institute for Restoration (Russian Federation)
E. A. Morozova, The State Research Institute for Restoration (Russian Federation)
N.S. Kurnakov Institute of General and Inorganic Chemistry (Russian Federation)
I. B. Afanasyev, Forensic Science Ctr. of the Ministry of the Interior (Russian Federation)
I. A. Balakhnina, M.V. Lomonosov Moscow State Univ. (Russian Federation)
The State Research Institute for Restoration (Russian Federation)
N. N. Brandt, M.V. Lomonosov Moscow State Univ. (Russian Federation)
The State Research Institute for Restoration (Russian Federation)
V. A. Yuryev, A. M. Prokhorov General Physics Institute (Russian Federation)


Published in SPIE Proceedings Vol. 10248:
Nanotechnology VIII
Ion M. Tiginyanu, Editor(s)

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