Glass composition having high thermal and chemical stability

作者: Adam James Ellison , Timothy James Kiczenski

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摘要: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) organic light emitting diode (AMOLEDs). In accordance with certain of its aspects, the possess good dimensional stability a function temperature. The comprise mol percent on an oxide basis: 70-74.5 SiO2, 10.5-13.5 AL2O3, 0-2.5 B2O3, 3-7 MgO, CaO, 0-4 SrO, 1.5-6 BaO, 0-0.3 SnO2, 0-03 CeO2, 0-0.5 As2O3, Sb2O3, 0.01-0.08 Fe2O3 F+Cl+Br RO/Al2O3 1.7 0.2 MgO/RO

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