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Characterization of 20Na 2 O·30((1− x )CaO· x SrO)·50P 2 O 5 glasses for a resorbable optical fiber application
Author(s) -
Freudenberger Parker T.,
Saitoh Akira,
Ikeda Hikaru,
Adnan Md Shihab,
Takebe Hiromichi,
Nakane Shingo,
Kim ChangSoo,
Brow Richard K.
Publication year - 2019
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/ijag.13106
Subject(s) - materials science , crystallization , thermal expansion , refractive index , glass transition , dissolution , analytical chemistry (journal) , molar volume , mineralogy , composite material , nuclear chemistry , chemical engineering , polymer , optoelectronics , chromatography , chemistry , thermodynamics , physics , engineering
Resorbable glasses with nominal molar compositions of 20Na 2 O·30[(1− x )CaO· x SrO]∙50P 2 O 5 , where x = 0, 0.25, 0.50, 0.75, and 1, were prepared and characterized. With the replacement of CaO by SrO, the molar volume, refractive index, and coefficient of thermal expansion increased, and the glass transition temperature, crystallization temperature, and viscosity decreased. The replacement of CaO by SrO decreased the dissolution rate in 37°C water by nearly an order of magnitude. Resorbable glass fibers drawn from melts of the 20Na 2 O·30CaO·50P 2 O 5 glass exhibited decreasing transmission of laser light (632 nm) in a predictable way as the fiber dissolved in a phosphate buffer solution. This demonstrated that these glasses could be used to produce resorbable fibers for temporary biosensing or therapeutic applications.