A microcrystalline glass containing a water-repellent and oil-repellent composite coating layer on the surface, a preparation method and application thereof. The coated glass is a microcrystalline glass or a glass ceramic containing a water-repellent and oil-repellent composite coating layer on the surface, which is characterized in that from the outmost surface of the glass, it includes: a water-repellent and oil-repellent layer, an intermediate layer, a bottom layer and a microcrystalline glass or a glass ceramic, wherein, the intermediate layer is the intermediate layer containing ionic crystals with a lattice energy of 700-3000 kJ/mol and formed by the same, the bottom layer includes compounds containing Si—O bonds or a mixed silicon oxide layer. The present invention can form a firm, durable and excellent water-repellent and oil-repellent coating film even if the coating interface of microcrystalline glass has very few Si—O structure, and can achieve excellent water-repellent and oil-repellent property regardless of whether the high-crystallinity glass has done ion exchange or not.

A glass-ceramic article comprises a petalite crystalline phase and a lithium silicate crystalline phase. The weight percentage of each of the petalite crystalline phase and the lithium silicate crystalline phase in the glass-ceramic article are greater than each of the weight percentages of other crystalline phases present in the glass-ceramic article. The glass-ceramic article has a transmittance color coordinate in the CIELAB color space of: L*=from 20 to 90; a*=from −20 to 40; and b*=from −60 to 60 for a CIE illuminant F02 under SCI UVC conditions. In some embodiments, the colorant is selected from the group consisting of TiO.sub.2, Fe.sub.2O.sub.3, NiO, Co.sub.3O.sub.4, MnO.sub.2, Cr.sub.2O.sub.3, CuO, Au, Ag, and V.sub.2O.sub.5.

A wired and detachable, moveable, dis-assemble, re-assemble USB or Wireless charging-unit(s) which has minimum feet DC power delivery wire that is manual to coil, wrap within unit's own space for wire-arrangement, said each wired and detachable unit(s) cover broad area and people can chare external product(s) at any location within said area; wherein said unit(s) assembly with electric product which is at least one (1) desk, floor, wall-mounted item, light, (2) power strip, (3) selfie LED light has built-in or added-on image capture device(s).

The present invention relates to a glass ceramic having improved thermal expansion characteristics and to the use thereof in a precision component.

The present invention relates to a glass ceramic having improved thermal expansion characteristics and to the use thereof in a precision component.

Optically transparent glass ceramic materials comprising a glass phase containing and a crystalline tungsten bronze phase comprising nanoparticles and having the formula M.sub.xWO.sub.3, where M includes at least one H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and U, and where 0<x<1. Aluminosilicate and zinc-bismuth-borate glasses comprising at least one of Sm.sub.2O.sub.3, Pr.sub.2O.sub.3, and Er.sub.2O.sub.3 are also provided.

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.Math.t up to 0.3.Math.t and from greater than about 0.7.Math.t up to t, comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer, 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.Math.t to about 0.3.Math.t) and a maximum central tension in the range from about 80 MPa to about 100 MPa. In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a value at a point between the first surface and the second surface and increases from the value 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.

A crystallized glass that: has a visible light transmittance of at least 85% when the thickness thereof is converted to 0.8 mm; has a haze value of no more than 1.0% when the thickness thereof is converted to 0.8 mm; contains, in terms of mass % on an oxide basis, 58%-70% SiO.sub.2, 15%-30% Al.sub.2O.sub.3, 2%-10% Li.sub.2O, 0%-5% Na.sub.2O, 0%-2% K.sub.2O, 0%-1.8% SrO, 0%-2% BaO, 0.5%-6% SnO.sub.2, 0.5%-6% ZrO.sub.2, and 0%-6% P.sub.2O.sub.5; has a total SrO and BaO content of 0.1%-3%; and has a total Na.sub.2O and K.sub.2O content of 1%-5%.

A glass-ceramic composition includes a first crystalline phase including lithium disilicate; and a second crystalline phase comprising at least one of: zircon, zirconia, apatite, or a combination thereof.

An object of the present invention is to provide a less tinted LAS system crystallized glass. In the present invention, a content of each of V and Cr in the LAS system crystallized glass is 0 to 3 ppm and a content of each of Sc, La, Ce, Pr, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa, and U is 0 to 10 ppm.