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    • 10. 发明申请
    • GLASSES AND GLASS CERAMICS INCLUDING A METAL OXIDE CONCENTRATION GRADIENT
    • 玻璃和玻璃陶瓷包括金属氧化物浓度梯度
    • WO2016057787A2
    • 2016-04-14
    • PCT/US2015054681
    • 2015-10-08
    • CORNING INC
    • HU GUANGLISMITH CHARLENE MARIETANG ZHONGZHITIETJE STEVEN ALVIN
    • C03C3/091
    • C03C21/002C03C3/091C03C3/093C03C3/097C03C10/00C03C10/0027C03C23/007
    • Embodiments of a glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0•t up to 0.3•t and from greater than 0.7•t, comprise a tangent that is less than about -0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers,, are disclosed. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0•t to about 0.3•t). In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a point between the first surface and the second surface and increases from the point to the second surface. The concentration of the metal oxide may be about 0.05 mo1% or greater or about 0.5 mo1% or greater throughout the thickness. Methods for forming such glass-based articles are also disclosed.
    • 玻璃基制品的实施方案包括第一表面和与第一表面相对的第二表面,所述第一表面和第二表面限定了约3毫米或更小(例如,约1毫米或更小)的厚度(t)和应力分布,其中所有点 在约0•t至0.3•t和大于0.7•t的厚度范围内的应力分布包括小于约-0.1 MPa /微米或大于约0.1 MPa /微米的切线,公开 。 在一些实施方案中,基于玻璃的制品包括沿着厚度的至少一部分(例如,0·t至约0.3·t)变化的非零金属氧化物浓度。 在一些实施方案中,金属氧化物或碱金属氧化物的浓度从第一表面到第一表面和第二表面之间的点减小,并且从点增加到第二表面。 金属氧化物的浓度在整个厚度上可以为约0.05摩尔%或更高或约0.5摩尔%或更高。 还公开了形成这种玻璃基制品的方法。