发明名称 |
CRACK-RESISTANT GLASS-CERAMIC ARTICLES AND METHODS FOR MAKING THE SAME |
摘要 |
Glass-ceramics exhibiting a Vickers indentation crack initiation threshold of at least 15 kgf are disclosed. These glass-ceramics may be ion exchangeable or ion exchanged. The glass-ceramics include a crystalline and amorphous phases generated by subjecting a thin precursor glass article to ceramming cycle having an average cooling rate in the range from about 10° C./minute to about 25° C./minute. In one or more embodiments, the crystalline phase may comprise at least 20 wt % of the glass-ceramics. The glass-ceramics may include &bgr;-spodumene ss as the predominant crystalline phase and may exhibit an opacity ≧about 85% over the wavelength range of 400-700 nm for an about 0.8 mm thickness and colors an observer angle of 10° and a CIE illuminant F02 determined with specular reflectance included of a* between −3 and +3, b* between −6 and +6, and L* between 88 and 97. |
申请公布号 |
EP3055261(A2) |
申请公布日期 |
2016.08.17 |
申请号 |
EP20140786770 |
申请日期 |
2014.10.09 |
申请人 |
CORNING INCORPORATED |
发明人 |
BEUNET, LIONEL JOEL MARY;COMTE, MARIE JACQUELINE MONIQUE;FREDHOLM, ALLAN MARK;FU, QIANG;PARIS, ANNE;PESCHIERA, SOPHIE;SMITH, CHARLENE MARIE |
分类号 |
C03C3/093;C03C10/00;C03C21/00 |
主分类号 |
C03C3/093 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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