公开(公告)号：US11352293B2

公开(公告)日：2022-06-07

申请号：US16425290

申请日：2019-05-29

Applicant: CORNING INCORPORATED

Inventor： Yuhui Jin ,  Pascale Oram ,  Rostislav Vatchev Roussev

IPC: C03C21/00 ,  C03C3/085 ,  C03C3/097

Abstract: A method of reworking lithium containing ion exchanged glass-based articles is provided. The method includes a reverse ion exchange process that returns the glass-based article to approximately the composition of the glass from which the glass-based article was produced, before being subjected to ion exchange.

公开(公告)号：US11059744B2

公开(公告)日：2021-07-13

申请号：US15617302

申请日：2017-06-08

Applicant: CORNING INCORPORATED

Inventor： Pascale Oram ,  Vitor Marino Schneider

IPC: C03C21/00 ,  C03C3/097 ,  C03C4/18 ,  G06F1/16 ,  C03C23/00

Abstract: Chemically strengthened glass articles exhibiting superior resistance to damage when dropped onto an abrasive surface. The strengthened glass article has a stress profile in which the compressive and tensile stresses within the article vary as a function of the thickness t of the glass article. The stress profile has a first region extending from the surface of the glass article to a depth d1 into the glass, wherein d1≤0.025t or ≤20 μm and has a maximum compressive stress of at least about 280 MPa at the surface, a second region extending from a depth of at least d1 to a second depth d2 and having a local compressive stress maximum, and a third region extending from a third depth d3 in the glass to a depth of compression DOC, wherein d2≤d3 and DOC≤0.15t. A method of strengthening a glass article to provide resistance to damage when dropped is also provided.

公开(公告)号：US11021393B2

公开(公告)日：2021-06-01

申请号：US16296773

申请日：2019-03-08

Applicant: CORNING INCORPORATED

Inventor： Pascale Oram ,  Rostislav Vatchev Roussev ,  Vitor Marino Schneider ,  Emily Elizabeth Young

IPC: C03C21/00 ,  C03C3/097

Abstract: A non-frangible glass article strengthened by a dual or two-step ion exchange (IOX) process, where the first IOX step leads to a depth of compressive layer FSM_DOL>0.1·t or, in some embodiments, FSM_DOL>0.15·t, where t is the thickness of the glass, is provided. The glass article has a compressive stress CS1 after the first IOX step at the surface of from 100 MPa to 400 MPa or, in some embodiments, from 150 MPa to 300 MPa. The first IOX step is followed by a second IOX step, leading to a “spike” compressive stress CS2 after the second IOX step at the surface of greater than 500 MPa or, in some embodiments, 700 MPa. The width of the spike generated by the second IOX is between 1 μm and 30 μm, or between 8 μm and 15 μm, using the criteria where the magnitude (absolute value) of the slope of the spike is higher than 20 MPa/μm.

公开(公告)号：US20200223750A1

公开(公告)日：2020-07-16

申请号：US16837286

申请日：2020-04-01

Applicant: Corning Incorporated

Inventor： Matthew John Dejneka ,  Pascale Oram ,  Rostislav Vatchev Roussev ,  Vitor Marino Schneider ,  Charlene Marie Smith ,  Zhongzhi Tang

IPC: C03C21/00 ,  C03C3/097 ,  G06F1/16

Abstract: A strengthened glass having a stress profile that differs from error-function and parabolic profiles. Stress relaxation and thermal annealing/diffusion effects, which occur at longer ion exchange and/or anneal times increase the depth of compression of the surface layer. A method of achieving these effects is also provided.

公开(公告)号：US20190389764A1

公开(公告)日：2019-12-26

申请号：US15750051

申请日：2017-02-02

Applicant: CORNING INCORPORATED

Inventor： Ryan Claude Andrews ,  Jill Marie Hall ,  Pascale Oram ,  Rostislav Vatchev Roussev ,  Vitor Marino Schneider ,  Ljerka Ukrainczyk

IPC: C03C10/00 ,  C03C3/085 ,  C03C21/00 ,  C03C3/097

Abstract: A method of reworking lithium containing ion exchanged glass articles is provided. The method includes a reverse ion exchange process that returns the glass article to approximately the composition of the glass from which the glass article was produced, before being subjected to ion exchange. The reworked glass articles exhibit a K2O concentration profile comprising a portion wherein a K2O concentration increases to a local K2O concentration maximum.

公开(公告)号：US10259745B2

公开(公告)日：2019-04-16

申请号：US15051044

申请日：2016-02-23

Applicant: CORNING INCORPORATED

Inventor： Sinue Gomez ,  Xiaoju Guo ,  Pascale Oram

IPC: C03C21/00

Abstract: A method of chemically strengthening a glass. The method includes heating an ion exchange solution to a temperature less than about 360° C., and contacting the glass and the strengthening solution at the temperature for a duration from about 0.5 hours to about 24 hours. The ion exchange solution includes a primary nitrate and at least one monovalent or divalent cation nitrate component in an amount from about 1 wt. % to about 10 wt. %.

公开(公告)号：US20170197876A1

公开(公告)日：2017-07-13

申请号：US15403817

申请日：2017-01-11

Applicant: Corning Incorporated

Inventor： Pascale Oram ,  Rostislav Vatchev Roussev ,  Vitor Marino Schneider

IPC: C03C21/00 ,  C03C4/18 ,  H05K5/00 ,  C03C3/097

CPC classification number: C03C21/002 ,  C03C3/097 ,  C03C4/18 ,  C03C2204/00 ,  H05K5/0017

Abstract: Glasses having a thickness tin a range from about 0.1 mm to less than 0.4 mm which, when chemically strengthened, is non-frangible and has a physical center tension CT (also referred to herein as “physical CT”), wherein CT>|−1.956×10−16×t6+1.24274×10−12×t5−3.09196×10−9×t4+3.80391×10−6×t3−2.35207×10−3×t2+5.96241×10−1×t+36.5994|, where t is expressed in microns.

公开(公告)号：US20160251262A1

公开(公告)日：2016-09-01

申请号：US15051044

申请日：2016-02-23

Applicant: CORNING INCORPORATED

Inventor： Sinue Gomez ,  Xiaoju Guo ,  Pascale Oram

IPC: C03C21/00

CPC classification number: C03C21/002 ,  C03C21/001 ,  C03C21/005

Abstract: A method of chemically strengthening a glass. The method includes heating an ion exchange solution to a temperature less than about 360° C., and contacting the glass and the strengthening solution at the temperature for a duration from about 0.5 hours to about 24 hours. The ion exchange solution includes a primary nitrate and at least one monovalent or divalent cation nitrate component in an amount from about 1 wt. % to about 10 wt. %.

Abstract translation: 化学强化玻璃的方法。 该方法包括将离子交换溶液加热至低于约360℃的温度，并在该温度下将玻璃和强化溶液接触约0.5小时至约24小时。 离子交换溶液包括初级硝酸盐和至少一种量为约1重量％的单价或二价阳离子硝酸盐组分。 ％至约10wt。 ％。

公开(公告)号：US20250002402A1

公开(公告)日：2025-01-02

申请号：US18748553

申请日：2024-06-20

Applicant: CORNING INCORPORATED

Inventor： Michael Morris Clark ,  Jeffrey Alan Decker ,  Xiaoju Guo ,  Zhenhua Guo ,  Mathieu Gerard Jacques Hubert ,  Peter Joseph Lezzi ,  Pascale Oram ,  Nicholas John Tostanoski ,  Bin Zhu

IPC: C03C21/00 ,  C03C3/097 ,  H05K5/03

Abstract: A glass composition can include from 60 mol % to 69 mol % SiO2, from 10 mol % to 18 mol % Al2O3, from 2.3 mol % to 6.9 mol % Li2O, from 2.1 mol % to 6.7 mol % Na2O, and from 1.1 mol % to 9 mol % alkaline earth metal oxides. The glass composition can comprise a liquidus viscosity greater than or equal to 150 kP. The glass composition can include from 0.25 mol % to 1 mol % K2O, from 0.5 mol % to 4 mol % P2O5, and/or 0.5 mol % to 3.6 mol % B2O3. The glass composition can form anorthoclase or a feldspar solid solution. The glass composition can include MgO+Li2O−(CaO+SrO+Na2O+K2O) is from −0.5 to −4. The glass composition can include volume electrical resistivity is greater than or equal to 2×1015 Ohm-centimeters. The glass composition may have a fracture toughness of greater than or equal 0.75 MPa√m.

公开(公告)号：US12122716B2

公开(公告)日：2024-10-22

申请号：US17100251

申请日：2020-11-20

Applicant: CORNING INCORPORATED

Inventor： Pascale Oram ,  Rostislav Vatchev Roussev

IPC: C03C4/18 ,  C03C3/097 ,  C03C21/00 ,  H05K5/00

CPC classification number: C03C4/18 ,  C03C3/097 ,  C03C21/002 ,  C03C2204/00

Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance and decreased weight gain. The glass-based articles are produced with a single-step ion exchange process.