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Melt Property Variation In Gese2-As2se3-Pbse Glass Ceramics For Infrared Gradient Refractive Index (Grin) Applications, Anupama Yadav, Andrew Buff, Myungkoo Kang, Laura Sisken, Charmayne Smith (Lonergan), Jason Lonergan, Cesar Blanco, Michael Antia, Megan Driggers, Andrew Kirk, Clara Rivero-Baleine, Theresa Mayer, Andrew Swisher, Alexej Pogrebnyakov, A. R. Hilton, Greg Whaley
Melt Property Variation In Gese2-As2se3-Pbse Glass Ceramics For Infrared Gradient Refractive Index (Grin) Applications, Anupama Yadav, Andrew Buff, Myungkoo Kang, Laura Sisken, Charmayne Smith (Lonergan), Jason Lonergan, Cesar Blanco, Michael Antia, Megan Driggers, Andrew Kirk, Clara Rivero-Baleine, Theresa Mayer, Andrew Swisher, Alexej Pogrebnyakov, A. R. Hilton, Greg Whaley
Materials Science and Engineering Faculty Research & Creative Works
Melt size-dependent physical property variation is examined in a multicomponent GeSe2-As2Se3-PbSe chalcogenide glass developed for gradient refractive index applications. The impact of melting conditions on small (40 g) prototype laboratory-scale melts extended to commercially relevant melt sizes (1.325 kg) have been studied and the role of thermal history variation on physical and optical property evolution in parent glass, the glass' crystallization behavior and post heat-treated glass ceramics, is quantified. As-melted glass morphology, optical homogeneity and heat treatment-induced microstructure following a fixed, two-step nucleation and growth protocol exhibit marked variation with melt size. These attributes …