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1. 发明公开

EP3169639A1 STRENGTHENED GLASS WITH DEEP DEPTH OF COMPRESSION 有权
标题翻译：加强深度压缩玻璃
公开(公告)号：EP3169639A1
公开(公告)日：2017-05-24
申请号：EP15750515.7
申请日：2015-07-24
申请人： Corning Inc.
发明人： PESANSKY, Jonathan David , REIMAN, Kevin Barry , ROUSSEV, Rostislav Vatchev
IPC分类号： C03C21/00 , G01N3/30
CPC分类号： C03C21/002 , G01N3/30
摘要： Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of at least about 45 μm within the article are provided. In one embodiment, the compressive stress profile includes a single linear segment extending from the surface to the depth of compression DOC. Alternatively, the compressive stress profile includes two linear portions: the first portion extending from the surface to a relatively shallow depth and having a steep slope; and a second portion extending from the shallow depth to the depth of compression. The strengthened glass has a 60% survival rate when dropped from a height of 100 cm in an inverted ball drop test and an equibiaxial flexural strength of at least 10 kgf as determined by abraded ring on ring testing. Methods of achieving such stress profiles are also described.
摘要翻译：提供了化学强化的玻璃制品，其具有至少一个从制品表面延伸至制品内至少约45μm深度的深度压缩层。在一个实施例中，压缩应力分布包括从表面延伸到压缩深度DOC的单个线性段。或者，压缩应力分布图包括两个线性部分：第一部分从表面延伸到较浅的深度并具有陡峭的斜坡; 以及从浅深度延伸到压缩深度的第二部分。强化玻璃在倒球落下试验中从100厘米高处落下时的存活率为60％，并且在环测试中通过磨损环确定的等轴挠曲强度至少为10kgf。还描述了实现这种应力分布的方法。

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