公开(公告)号：US11339088B2

公开(公告)日：2022-05-24

申请号：US16434750

申请日：2019-06-07

Applicant: CORNING INCORPORATED

Inventor： Timothy Michael Gross ,  Xiaoju Guo ,  Jason Thomas Harris ,  Peter Joseph Lezzi ,  Alexandra Lai Ching Kao Andrews Mitchell ,  Pascale Oram ,  Kevin Barry Reiman ,  Rostislav Vatchev Roussev ,  Ljerka Ukrainczyk

IPC: B32B15/04 ,  B32B17/06 ,  C03C21/00 ,  C03C3/085 ,  C03C3/091 ,  C03C3/097

Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The glass-based articles herein provide high fracture resistance after multiple drops.

公开(公告)号：US20220009829A1

公开(公告)日：2022-01-13

申请号：US17485911

申请日：2021-09-27

Applicant: CORNING INCORPORATED

Inventor： Xiaoju Guo ,  Jennifer Lynn Hunt ,  Peter Joseph Lezzi ,  Rostislav Vatchev Roussev ,  Charlene Marie Smith ,  Ross Johnson Stewart

IPC: C03C21/00 ,  C03C3/087 ,  H05K7/14

Abstract: Glass-based articles are provided that exhibit improved fracture resistance. The relationships between properties attributable to the glass composition and stress profile of the glass-based articles are provided that indicate improved fracture resistance.

公开(公告)号：US11130705B2

公开(公告)日：2021-09-28

申请号：US16565899

申请日：2019-09-10

Applicant: CORNING INCORPORATED

Inventor： Xiaoju Guo ,  Jennifer Lynn Hunt ,  Peter Joseph Lezzi ,  Rostislav Vatchev Roussev ,  Charlene Marie Smith ,  Ross Johnson Stewart

IPC: C03C21/00 ,  C03C3/087 ,  H05K7/14

Abstract: Glass-based articles are provided that exhibit improved fracture resistance. The relationships between properties attributable to the glass composition and stress profile of the glass-based articles are provided that indicate improved fracture resistance.

公开(公告)号：US11105612B2

公开(公告)日：2021-08-31

申请号：US16825338

申请日：2020-03-20

Applicant: CORNING INCORPORATED

Inventor： Ryan Claude Andrews ,  Pierre Michel Bouzi ,  William John Furnas ,  Jeremiah Robert Jacobson ,  Glenn Abram Newcomer ,  Evan Lewis Olson ,  Babak Robert Raj ,  Rostislav Vatchev Roussev ,  Viktor Stepanov ,  Nathaniel David Wetmore

IPC: G01B11/16 ,  G01J4/02

Abstract: The hybrid measurement system includes an evanescent prism coupling spectroscopy (EPCS) sub-system and a light-scattering polarimetry (LSP) sub-system. The EPCS sub-system includes an EPCS light source optically coupled to an EPCS detector system through an EPCS coupling prism. The LSP sub-system includes an LSP light source optically coupled to an optical compensator, which in turn is optically coupled to a LSP detector system via a LSP coupling prism. A support structure supports the EPCS and LSP coupling prisms to define a coupling prism assembly, which supports the two prisms at a measurement location. Stress measurements made using the EPCS and LSP sub-systems are combined to fully characterize the stress properties of a transparent chemically strengthened substrate. Methods of processing the EPCS and LSP measurements to improve measurement accuracy are also disclosed.

公开(公告)号：US11104608B2

公开(公告)日：2021-08-31

申请号：US16682143

申请日：2019-11-13

Applicant: CORNING INCORPORATED

Inventor： Ryan Claude Andrews ,  Albert Joseph Fahey ,  Lisa Marie Noni ,  Rostislav Vatchev Roussev ,  Charlene Marie Smith ,  Ljerka Ukrainczyk ,  Shelby Kerin Wilson

IPC: C03C21/00 ,  C03C10/00

Abstract: Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07 t to a depth of about 0.26 t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18 t to about 0.25 t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa√m or more as measured according to the double cantilever beam method.

公开(公告)号：US11053162B2

公开(公告)日：2021-07-06

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: B32B15/04 ,  B32B17/06 ,  C03C10/00 ,  C03C3/085 ,  C03C3/097 ,  C03C21/00

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：US20210181802A1

公开(公告)日：2021-06-17

申请号：US17179541

申请日：2021-02-19

Applicant: CORNING INCORPORATED

Inventor： Emily Marie Aaldenberg ,  Jared Seaman Aaldenberg ,  Xiaoju Guo ,  Peter Joseph Lezzi ,  Jian Luo ,  Rostislav Vatchev Roussev

IPC: G06F1/16 ,  C03C21/00 ,  H05K5/02

Abstract: Glass-based articles are provided that exhibit improved drop performance. The relationship between properties attributable to the glass composition and stress profile of the glass-based articles are provided that indicate improved drop performance.

公开(公告)号：US20210164959A1

公开(公告)日：2021-06-03

申请号：US17169900

申请日：2021-02-08

Applicant: CORNING INCORPORATED

Inventor： Rostislav Vatchev Roussev ,  Vitor Marino Schneider

IPC: G01N33/38 ,  C03C21/00 ,  G01L1/00

Abstract: Methods of characterizing ion-exchanged chemically strengthened Li-containing glasses include: a) measuring a mode spectrum of the glass sample; b) using the mode spectrum, estimating a first contribution to the center tension associated with a spike region and estimating a second contribution to the center tension due to a deep region only, wherein the deep region is assumed to follow a power-law stress profile; and c) determining a total center tension by adding of the first and second contributions to the center tension. The methods can be used for quality control during manufacturing of glass samples by comparing the total center tension to a center tension specification that provides optimum strength and durability.

公开(公告)号：US20210155533A1

公开(公告)日：2021-05-27

申请号：US17100251

申请日：2020-11-20

Applicant: CORNING INCORPORATED

Inventor： Pascale Oram ,  Rostislav Vatchev Roussev

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

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.

公开(公告)号：US10900850B2

公开(公告)日：2021-01-26

申请号：US16015776

申请日：2018-06-22

Applicant: CORNING INCORPORATED

Inventor： Ryan Claude Andrews ,  Rostislav Vatchev Roussev ,  Vitor Marino Schneider

IPC: G01L1/24 ,  G01N21/43 ,  G01N33/38 ,  G01N21/23 ,  C03C21/00 ,  G01N21/552

Abstract: Methods of improving the measurement of knee stress in an ion-exchanged chemically strengthened Li-containing glass sample that includes a knee are disclosed. One of the methods includes compensating for a shift in the location of the TIR-PR transition location associated with the critical angle location, wherein the shift is due to the presence of a leaky mode. Another method includes applying select criteria to the captured mode spectra image to ensure a high-quality image is used for the knee stress calculation. Another method combines direct and indirect measurements of the knee stress using the mode spectra from multiple samples to obtain greater accuracy and precision as compared to using either the direct measurement method or the indirect measurement method alone. Quality control methods of forming the glass samples using measured mode spectra and related techniques for ensuring an accurate measurement of the knee stress are also disclosed.