BOROSILICATE GLASS ARTICLE

To provide glass and glass articles having a high UV transmission, advantageous properties in terms of demixing and good joining properties on fusion.SOLUTION: A glass article is composed of a glass having a demixing factor in terms of its hydrolytic resistance in a range from 0.10 to 1.65. The glas...

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Bibliographische Detailangaben
Hauptverfasser:	MALTE GRIMM, SUSANNE KRUEGER, RAINER ERWIN EICHHOLZ, KATRIN NAUMANN, BRIGITTE WOELZLEIN, OLIVER HOCHREIN
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	To provide glass and glass articles having a high UV transmission, advantageous properties in terms of demixing and good joining properties on fusion.SOLUTION: A glass article is composed of a glass having a demixing factor in terms of its hydrolytic resistance in a range from 0.10 to 1.65. The glass article has an induced extinction α(λ) of at most 0.300, at 200 nm after irradiation with a deuterium lamp for 48 hours and/or 96 hours. The glass has a molar ratio of B2O3 to BaO of at least 8 and at most 20; or at least 10 and at most 15.SELECTED DRAWING: Figure 1 【課題】高い紫外線透過率、偏析に関して有利な特性、および封着時の良好な接合特性を有するガラスならびにガラス物品を提供する。【解決手段】ガラス物品であって、その耐加水分解性に関して０．１０～１．６５の範囲の偏析係数を有するガラスから構成され、重水素ランプで４８時間および／または９６時間照射した後の２００ｎｍでの誘起吸光度α（λ）は、最大で０．３００である。前記ガラスは、少なくとも８でかつ最大で２０、特に少なくとも１０でかつ最大で１５の、ＢａＯに対するＢ２Ｏ３のｍｏｌ％での分率を有する。【選択図】図１