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    • 26. 发明申请
    • FUSION-FORMABLE GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT
    • 包括金属氧化物浓度梯度的基于熔融玻璃的制品
    • WO2017100646A1
    • 2017-06-15
    • PCT/US2016/065932
    • 2016-12-09
    • CORNING INCORPORATED
    • GROSS, Timothy MichaelHU, GuangliROUSSEV, Rostislav VatchevSMITH, Charlene MarieTANG, ZhongzhiTIETJE, Steven Alvin
    • C03C21/00
    • C03C21/002C03C3/093C03C3/097C03C4/18C03C23/007C03C2204/00
    • 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 about 0.7• t to t , comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer. 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 ) and a maximum central tension of less than about 71.5/√( t ) (MPa). 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 mol% or greater or about 0.5 mol% or greater throughout the thickness. Methods for forming such glass-based articles are also disclosed.
    • 包括第一表面和与第一表面相对的第二表面的基于玻璃的制品限定约3毫米或更小(例如约1毫米)的厚度(t) 或更小)以及应力分布,其中应力分布的所有点的厚度范围为约0·t至0.3·t和大于约0.7 ·t到t'包括具有绝对值大于约0.1MPa /微米的斜率的切线。 在一些实施例中,基于玻璃的制品包括沿着厚度的至少一部分(例如,0·t到大约0.3·t·cm)变化的非零金属氧化物浓度, 并且最大中心张力小于约71.5 /√(MPa)。 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与第二表面之间的点降低并且从该点到第二表面增加。 在整个厚度中金属氧化物的浓度可以为约0.05摩尔%或更大或约0.5摩尔%或更大。 还公开了形成这种玻璃基制品的方法。