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Qiang Fu

Charlene Marie Smith

George Halsey Beall

John Christopher Mauro

Huayun Deng

Matthew John Dejneka

Xiaoju Guo

Carol Ann Click

Robert Michael Morena

Ljerka Ukrainczyk

Sinue Gomez

Ye Fang

Rohit Rai

John Richard Ridge

Timothy Michael Gross

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Allan Mark Fredholm

Marie Jacqueline Monique Comte

Bin Yang

Hoi-Cheong Steve Sun

Paul M Ripley

Jun Chen

Zheming Zheng

Jill Marie Hall

Randall Eugene Youngman

John Robert Saltzer, Jr

Harris Lieber

Sophie Peschiera

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Sumalee Likitvanichkul

Derek Lok

Gregory Stefkovic

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Liang Xin Xu

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Ronald Leroy Stewart

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Lina Ma

Liangwei Qu

Funian Zhao

Aniello Mario Palumbo

Yuhui Jin

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Mu Wu

Pascale Oram

Aize Li

Raymond L Yao

Alana Marie Whittier

Mathieu Gerard Jacques Hubert

Alexander Markovic

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Joseph R Anstett, Jr

Vladislav Milenkovic

Lin Chen

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Dhananjay Joshi

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Hoi-Wah Lok

Methods for regenerating a salt bath composition include heating the salt bath composition to an ion exchange temperature to form a molten salt bath. The methods may further include contacting at least a portion of an ion-exchangeable article that includes lithium oxide (LiO) with the molten salt bath. Lithium cations may diffuse from the ion-exchangeable article and into the molten salt bath. Additionally, the methods may include adding a first phosphate salt to the molten salt bath. A lithium phosphate salt that includes at least a portion of the lithium cations may be formed and precipitate from the molten salt bath. Furthermore, the methods may include adding a multivalent salt that includes a multivalent metal cation to the molten salt bath. A second phosphate salt that includes the multivalent metal cation may be formed and precipitate from the molten salt bath.

Salt bath compositions and methods for regenerating salt bath compositions

A glass-ceramic article comprises silica, lithia, phosphorus pentoxide, and zirconia in amounts that, when heat treated, provide a glass-ceramic including a lithium disilicate (LSiO) crystalline phase. The glass-ceramic may have high fracture toughness, transparency, hardness, and may be strengthen via ion-exchange.

High strength glass-ceramics

Methods of forming a glass-ceramic article, the method are provided. Embodiments of the method may include initially nucleating a precursor glass composition at a first nucleation temperature and maintaining the first nucleation temperature for a pre-nucleating time period to produce a pre-nucleated crystallizable glass composition, wherein the pre-nucleated crystallizable glass composition comprises 5 wt % to 20 wt % crystalline phase ASTM C1365-18, forming the pre-nucleated crystallizable glass composition into an initial 3D shape; further nucleating the initial 3D shape for a nucleating time period to a second nucleation temperature to produce a nucleated crystallizable glass composition; and ceramming the nucleated crystallizable glass composition to a crystallization temperature and maintaining the ceramming temperature for a crystallization time period to produce the glass-ceramic article. The glass-ceramic article may have a final 3D shape is within 0.1 mm of the original design specifications.

3D glass-ceramic articles and methods for making the same

A silicate-based glass composition includes: 40-60 wt. % SiO, 0-10 wt. % BO, 0.01-10 wt. % PO, 0-10 wt. % AlO, 0-5 wt. % LiO, 10-30 wt. % NaO, 0.01-15 wt. % KO, 0.01-5 wt. % MgO, 15-30 wt. % CaO, 15-35 wt. % MO, and 15-30 wt. % RO, such that MO is the sum of MgO, CaO, SrO, BeO, and BaO, and RO is the sum of NaO, KO, LiO, RbO, and CsO.

Bioactive glass compositions

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.

Glass-ceramics based on lithium disilicate, zircon, and apatite

A group of glass compositions in the LiO—AlO—SiO—BOfamily that can be chemically strengthened in single or multiple ion exchange baths containing at least one of NaNOand KNOfor a short time (2-4 hours) to develop a deep depth of layer (DOL). In some instances, the DOL is at least 70 μm; in others, at least about 100 μm. The ion exchanged glasses have a high damage resistance (indentation fracture toughness ranging form greater than 10 kgf to greater than 50 kgf) that is better than or at least comparable to that of sodium aluminosilicate glasses.

Chemically strengthenable lithium aluminosilicate glasses with inherent damage resistance

Glass-ceramic containers and methods of making glass ceramic containers with high transparency and fracture toughness suitable for use as, for example a beverage or food container, such as for example, a baby bottle or personal hydration bottle. The glass ceramic containers may have an average wall thickness in the range of 1 mm to 2.5 mm and a fracture toughness of 1 MPa*m{circumflex over ( )}½ or more.

High strength transparent glass-ceramic containers

A glass-ceramic article comprises in wt % on an oxide basis SiOin an amount greater than or equal to 55 wt % and less than or equal to 80 wt %, AlOin an amount greater than or equal to 2 wt % and less than or equal to 20 wt %, LiO in an amount greater than or equal to 5 wt % and less than or equal to 20 wt %, POin an amount greater than 0 wt % and less than or equal to 6 wt %, and ZrOin an amount greater than or equal to 0.2 wt % and less than or equal to 15 wt %. A sum of ZrOand POis greater than or equal to 3 wt %. The glass-ceramic article comprises a lithium disilicate (LiSiO) crystalline phase, where the lithium disilicate is between 40 wt % to 60 wt % of the glass-ceramic article.

In embodiments, a glass includes from 45 mol % to 70 mol % SiO; from 11.5 mol % to 25 mol % AlO; from 2 mol % to 20 mol % LiO; from greater than 0 mol % to 10 mol % NaO; from 9 mol % to 19 mol % MgO; from 4 mol % ZrO; and from 0 mol % to 0.5 mol % TiO. In other embodiments, a glass includes from 45 mol % to 70 mol % SiO; from 4 mol % to 25 mol % AlO; from 5 mol % to 20 mol % LiO; from 0.1 mol % to 10 mol % NaO; from 6 mol % to 25 mol % MgO; from 0.1 mol % to 4 mol % ZrO; from 0.1 mol % to 5 mol % KO; and from 0.05 mol % to 0.5 mol % SnO.

Ion exchangeable glasses having high fracture toughness

A glass ceramic article including a lithium disilicate crystalline phase, a petalite crystalline phased, and a residual glass phase. The glass ceramic article has a warp (μm)<(3.65×10/μm×diagonal) where diagonal is a diagonal measurement of the glass ceramic article in μm, a stress of less than 30 nm of retardation per mm of glass ceramic article thickness, a haze (%)<0.0994t+0.12 where t is the thickness of the glass ceramic article in mm, and an optical transmission (%)>0.91×10of electromagnetic radiation wavelengths from 450 nm to 800 nm, where t is the thickness of the glass ceramic article in mm.

Glass ceramic articles having improved properties and methods for making the same

In embodiments, a precursor glass composition comprises from about 55 wt. % to about 80 wt. % SiO; from about 2 wt. % to about 20 wt. % AlO; from about 5 wt. % to about 20 wt. % LiO; greater than 0 wt % to about 3 wt. % NaO; a non-zero amount of POless than or equal to 4 wt. %; and from about 0.2 wt. % to about 15 wt. % ZrO. In embodiments, ZrO(wt. %)+PO(wt. %) is greater than 3. When the precursor glass composition is converted to a glass-ceramic article, the glass-ceramic article may include grains having a longest dimension of less than 100 nm.

High strength glass-ceramics having petalite and lithium silicate structures

A glass-ceramic article comprises: a center-volume composition comprising (on an oxide basis): 55-75 mol % SiO; 0.2-10 mol % AlO; 0-5 mol % BO; 15-30 mol % LiO; 0-2 mol % NaO; 0-2 mol % KO; 0-5 mol % MgO; 0-2 mol % ZnO; 0.2-3.0 mol % PO; 0.1-10 mol % ZrO; 0-4 mol % TiO; and 0-1.0 mol % SnO. Lithium disilicate and either β-spodumene or β-quartz are the two predominant crystalline phases (by weight) of the glass-ceramic article. The glass-ceramic article further comprises tetragonal ZrOas a crystalline phase. The composition of the glass-ceramic article from a primary surface into a thickness of the glass-ceramic article can comprise over 10 mol % NaO (on an oxide basis), with the mole percentage of NaO decreasing from the primary surface towards the center-volume. The glass-ceramic article exhibits a ring-on-ring load-to-failure of at least 120 kgf, when the thickness of the glass-ceramic article is 0.3 mm to 2.0 mm.

White glass-ceramic substrates and articles including tetragonal zirconia crystalline phase, and method of manufacturing the same

Methods of making a bioactive glass fiber include forming a melt of a glass composition including: 50 to 70% SiO; 0.1 to 10% AlO, 5 to 30% NaO, 0.1 to 15% KO, 0.1 to 15% MgO, 0.1 to 20% CaO, and 5 to 10% PO, based on a 100 wt % of the glass composition. The melt has a viscosity of from 200 Poise to 2,000 Poise. Methods include drawing the melt into a drawn glass fiber. Bioactive glass compositions include: 60 to 70% SiO; 15 to 30% NaO, 5 to 15% KO, 1 to 10% CaO, and 5 to 10% PO, based on a 100 wt % of the glass composition.

High liquidus viscosity bioactive glass

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Qiang Fu