Corning Incorporated

Eurokera

Eurokera S.n.c.

Marie Jacqueline Monique Comte

Charlene Marie Smith

George Halsey Beall

Philippe Lehuede

Robert Michael Morena

Sinue Gomez

Melinda Ann Drake

Randall Eugene Youngman

Karen Leslie Geisinger

Ronald Leroy Stewart

Paulo Jorge Gaspar Marques

Qiang Fu

Linda Ruth Pinckney

Steven Alvin Tietje

Allan Mark Fredholm

Sophie Peschiera

Lothar Wondraczek

Anne Paris

George Owen Dale

Lionel Joel Mary Beunet

Isabelle Marie Melscoët-Chauvel

Cécile Jousseaume

Kamila Plevacova

Isabelle Marie Chauvel-Melscoet

Emmanuel Raymond André Lecomte

Bruce Gardiner Aitken

Indrajit Dutta

Emmanuel Lecomte

Etienne Almoric

Jian-Zhi Jay Zhang

Paulo Gaspar Jorge Marques

Daniel Louis Gabriel Ricoult

Michel Lismonde

Estelle Molieres

Isabelle Marie Melscoét-Chauvel

Delavand Ovono Ovono

Philippe Pradeau

Thiphaine Ogier

Micaela Nazaraly

Bairu Chen

Michel Jean Gerard Lismonde

Isabelle MELSCOËT-Chauvel

Leroy Ronald Stewart

Embodiments of methods for forming strengthened glass articles comprise providing an exchangeable glass substrate having a coefficient of thermal expansion (CTE) between about 60×10-7/° C. to about 110×10-7/° C., depositing at least one decorative porous inorganic layer onto at least a portion of the surface of the glass substrate, wherein the decorative porous inorganic layer comprises a glass transition temperature (Tg)≥450° C., a glass softening temperature (Ts)≤650° C., wherein the difference in CTE values between the glass substrate and the decorative porous inorganic layer is within 10×10-7/° C.; and curing the glass substrate and the deposited decorative porous inorganic layer at a temperature greater than the Ts of the decorative porous inorganic layer; and chemically strengthening the cured glass substrate and the decorative porous inorganic layer thereon via ion exchange at a temperature below the Tg of the decorative porous inorganic layer.

Decorative porous inorganic layer compatible with ion exchange processes

A method for forming a glass frit for additive manufacturing includes providing a mixture having at least one silicon (Si) compound, at least one calcium (Ca) compound, and at least one zirconium (Zr) compound; melting the mixture at a temperature of at least 1400° C.; cooling the mixture to room temperature to obtain the glass frit including at least 50 wt. % SiO, at least 30 wt. % CaO, and at least 10 wt. % ZrO.

Dense glass-ceramic articles via additive manufacture of glass frit

Embodiments of a transparent glass-based material comprising a glass phase and a second phase that is different from and is dispersed in the glass phase are provided. The second phase may comprise a crystalline or a nanocrystalline phase, a fiber, and/or glass particles. In some embodiments, the second phase is crystalline. In one or more embodiments, the glass-based material has a transmittance of at least about 88% over a visible spectrum ranging from about 400 nm to about 700 nm and a fracture toughness of at least about 0.9 MPa·m, and wherein a surface of the glass-based material, when scratched with a Knoop diamond at a load of at least 5 N to form a scratch having a width w, is free of chips having a size of greater than 3 w.

High strength, scratch resistant and transparent glass-based materials

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 β-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.

Crack-resistant glass-ceramic articles and methods for making the same

Embodiments of a transparent glass-based material comprising a glass phase and a second phase that is different from and is dispersed in the glass phase are provided. The second phase may comprise a crystalline or a nanocrystalline phase, a fiber, and/or glass particles. In some embodiments, the second phase is crystalline. In one or more embodiments, the glass-based material has a transmittance of at least about 88% over a visible spectrum ranging from about 400 nm to about 700 nm and a fracture toughness of at least about 0.9 MPA·m, and wherein a surface of the glass-based material, when scratched with a Knoop diamond at a load of at least 5 N to form a scratch having a width w, is free of chips having a size of greater than 3 w.

According to one embodiment, a glass article may include SiO, AlO, LiO and NaO. The glass article may have a softening point less than or equal to about 810&#xb0; C. The glass article may also have a high temperature CTE less than or equal to about 27&#xd7;10/&#xb0; C. The glass article may also be ion exchangeable such that the glass has a compressive stress greater than or equal to about 600 MPa and a depth of layer greater than or equal to about 25 &#x3bc;m after ion exchange in a salt bath comprising KNOat a temperature in a range from about 390&#xb0; C. to about 450&#xb0; C. for less than or equal to approximately 15 hours.

Ion exchangeable Li-containing glass compositions for 3-D forming

Embodiments of a transparent glass-based material comprising a glass phase and a second phase that is different from and is dispersed in the glass phase are provided. The second phase may comprise a crystalline or a nanocrystalline phase, a fiber, and/or glass particles. In some embodiments, the second phase is crystalline. In one or more embodiments, the glass-based material has a transmittance of at least about 88% over a visible spectrum ranging from about 400 nm to about 700 nm and a fracture toughness of at least about 0.9 MPa&#xb7;m, and wherein a surface of the glass-based material, when scratched with a Knoop diamond at a load of at least 5 N to form a scratch having a width w, is free of chips having a size of greater than 3w.

Embodiments of methods for forming strengthened glass articles comprise providing an exchangeable glass substrate having a coefficient of thermal expansion (CTE) between about 60&#xd7;10&#x2212;7&#xb0;/C. to about 110&#xd7;10&#x2212;7&#xb0;/C., depositing at least one decorative porous inorganic layer onto at least a portion of the surface of the glass substrate, wherein the decorative porous inorganic layer comprises a glass transition temperature (Tg)&#x2265;450&#xb0; C., a glass softening temperature (Ts)&#x2265;650&#xb0; C., wherein the difference in CTE values between the glass substrate and the decorative porous inorganic layer is within 10&#xd7;10&#x2212;7&#xb0;/C.; and curing the glass substrate and the deposited decorative porous inorganic layer at a temperature greater than the Ts of the decorative porous inorganic layer; and chemically strengthening the cured glass substrate and the decorative porous inorganic layer thereon via ion exchange at a temperature below the Tg of the decorative porous inorganic layer.

A glass-ceramic article that includes an article having a glass-ceramic composition, the composition including:

Glass-ceramic articles, compositions, and methods of making the same

Embodiments of a transparent glass-based material comprising a glass phase and a second phase that is different from and is dispersed in the glass phase are provided. The second phase may comprise a crystalline or a nanocrystalline phase, a fiber, and/or glass particles. In some embodiments, the second phase is crystalline. In one or more embodiments, the glass-based material has a transmittance of at least about 88% over a visible spectrum ranging from about 400 nm to about 700 nm and a fracture toughness of at least about 0.9 MPa&#xb7;m, and wherein a surface of the glass-based material, when scratched with a Knoop diamond at a load of at least 5 N to form a scratch having a width w, is free of chips having a size of greater than 3 w.

The object of the present application is &#x3b2;-quartz glass-ceramics (having very interesting optical, thermal expansion and feasibility properties), the articles including said glass-ceramics; the precursor glasses of said glass-ceramics, as well as the methods for elaborating said glass-ceramics and said articles. Said glass-ceramics having a composition, free, except for inevitable trace amounts, of arsenic oxide, antimony oxide and rare earth oxide, which contains, expressed in percentages by weight of oxides: 64 to 70% of SiO, 18 to 24% of AlO, 4 to 5% of LiO, 0 to 0.6% of SnO, &#x3e;1.9 to 4% of TiO, 1 to 2.5% of ZrO, 0 to 1.5% of MgO, 0 to 3% of ZnO, &#x3e;0.3 to 1 of CaO, 0 to 3% of BaO, 0 to 3% of SrO, with BaO+SrO&#x2264;3%, 0 to 1.5% of NaO, 0 to 2% of KO, with 0.2&#x3c;(MgO+NaO+KO)/LiO&#x2264;1, 0 to 3% of PO, less than 250 ppm of FeO; and their crystallites, present in said &#x3b2;-quartz solid solution, have an average size of less than 40 nm, advantageously less than 35 nm, very advantageously less than 30 nm.

Transparent, essentially colorless, tin-fined las glass-ceramics with improved microstructure and thermal expansion properties

A glass ceramic material is disclosed that includes a residual glass, and a crystalline phase that includes a yoshiokaite phase. The yoshiokaite phase constitutes a main crystalline phase of the glass ceramic material. A method for making a glass ceramic material is also disclosed that includes heat treating frit glass to form the glass ceramic material, wherein the frit glass comprises: SiOfrom 15 mol % to 37 mol %; AlOfrom 40 mol % to 47 mol %; and CaO from 20 mol % to 30 mol %.

Yoshiokaite glass-ceramics obtained from glass frits

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&#xb0; C./minute to about 25&#xb0; 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 &#x3b2;-spodumene ss as the predominant crystalline phase and may exhibit an opacity &#x2265;about 85% over the wavelength range of 400-700 nm for an about 0.8 mm thickness and colors an observer angle of 10&#xb0; and a CIE illuminant F02 determined with specular reflectance included of a* between &#x2212;3 and +3, b* between &#x2212;6 and +6, and L* between 88 and 97.

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Fontenay aux Roses, France

Marie Jacqueline Monique Comte