Corning Incorporated

Marcel Potuzak

Adam James Ellison

Timothy James Kiczenski

Douglas Clippinger Allan

John Christopher Mauro

Bradley Frederick Bowden

Xiaoju Guo

Dana Craig Bookbinder

Timothy Michael Gross

Morten Mattrup Smedskjaer

Matthew John Dejneka

Randall Eugene Youngman

John Chrisopher Mauro

Computer-implemented methods and apparatus are provided for predicting/estimating (i) a non-equilibrium viscosity for at least one given time point in a given temperature profile for a given glass composition, (ii) at least one temperature profile that will provide a given non-equilibrium viscosity for a given glass composition, or (iii) at least one glass composition that will provide a given non-equilibrium viscosity for a given time point in a given temperature profile. The methods and apparatus can be used to predict/estimate stress relaxation in a glass article during forming as well as compaction, stress relaxation, and/or thermal sag or thermal creep of a glass article when the article is subjected to one or more post-forming thermal treatments.

Methods and apparatus for predicting glass dynamics

A glass article including at least about 40 mol % SiOand, optionally, a colorant imparting a preselected color is disclosed. In general, the glass includes, in mol %, from about 40-70 SiO, 0-25 AlO, 0-10 BO; 5-35 NaO, 0-2.5 KO, 0-8.5 MgO, 0-2 ZnO, 0-10% POand 0-1.5 CaO. As a result of ion exchange, the glass includes a compressive stress (&#x3c3;) at at least one surface and, optionally, a color. In one method, communicating a colored glass with an ion exchange bath imparts &#x3c3;while in another; communicating imparts &#x3c3;and a preselected color. In the former, a colorant is part of the glass batch while in the latter; it is part of the bath. In each, the colorant includes one or more metal containing dopants formulated to impart to a preselected color. Examples of one or more metal containing dopants include one or more transition and/or rare earth metals.

Colored alkali aluminosilicate glass articles

Glasses comprising SiO, AlO, and POthat are capable of chemical strengthened by ion exchange and having high damage resistance. These phosphate-containing glasses have a structure in which silica (SiO) is replaced by aluminum phosphate (AlPO) and/or boron phosphate (BPO).

Ion exchangeable glass with deep compressive layer and high damage threshold

Glass compositions that may be used to produce chemically strengthened glass sheets by ion exchange. The glass compositions are chosen to promote simultaneously high compressive stress and deep depth of layer or, alternatively, to reduce the time needed to ion exchange the glass to produce a predetermined compressive stress and depth of layer.

Aluminosilicate glasses for ion exchange

Ion exchangable glass with deep compressive layer and high damage threshold

Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) and active matrix organic light emitting diode displays (AMOLEDs). In accordance with certain of its aspects, the glasses possess excellent compaction and stress relaxation properties.

Glass with improved total pitch stability

Methods are disclosed for producing chemically-strengthened, borosilicate, glass articles. The articles are produced from batch components which are selected, at least in part, based on measured and/or estimated values for the coordination state of BOin the glass. In this way, such chemical-strengthening properties as mutual diffusivity, maximum surface compressive stress, and/or indentation threshold can be improved.

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Corning, NY, United States of America

Marcel Potuzak