Abstract: Alkali-doped and alkali-free boroaluminosilicate glasses that include barium oxide and the network formers SiO2, B2O3, and Al2O3. The glasses may be doped with up to about 1 mol % of Li2O, Na2O, and/or K2O. The glass may, in some embodiments, have a Young's modulus of less than about 61 GPa and/or a coefficient of thermal expansion, averaged over a temperature range from about 20° C. to about 300° C., of less than about 40×10?7/° C. These glasses may be used as a cover glass for electronic devices, a color filter substrate, a thin film transistor substrate, or an outer clad layer for a glass laminate.

Abstract: A method of producing an optical fiber is provided that includes the steps of flowing a first gas into an optical fiber draw furnace. The first gas is passed through a heated section configured to contain and heat a glass source from which the optical fiber is drawn, passing the first gas through a muffle which defines a capture chamber. A portion of the first gas is removed through at least one reclaim port operatively coupled to the capture chamber. A second gas flows into a gas screen at a rate configured to substantially recover a pressure drop associated with removing the portion of the first gas.

Abstract: A method of making a glass sheet includes exposing a refractory block material comprising at least one multivalent component to a reducing atmosphere for a time and at a temperature sufficient to substantially reduce the at least one multivalent component of the refractory block material. The method also includes flowing molten glass over the refractory block material that has been exposed to the reducing atmosphere while preventing substantial re-oxidation of the at least one multivalent component.

Abstract: Photovoltaic devices where glass substrates have a composition where (RO+M2O)/Z2O3 is greater than 1. This ratio may affect sodium out-flux from the glass substrate and into the CIGS layer or the Mo layer or both.