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公开(公告)号：US11634360B2
公开(公告)日：2023-04-25
申请号：US17461126
申请日：2021-08-30
Applicant: Corning Incorporated
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
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 0.07t to a depth of about 0.26t 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 0.18t to about 0.25t 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.
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公开(公告)号：US20210387905A1
公开(公告)日：2021-12-16
申请号：US17461126
申请日：2021-08-30
Applicant: Corning Incorporated
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
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 0.07t to a depth of about 0.26t 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 0.18t to about 0.25t 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.
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Patent Agency Ranking
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
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.
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公开(公告)号：US20190072469A1
公开(公告)日：2019-03-07
申请号：US16122214
申请日：2018-09-05
Applicant: Corning Incorporated
Inventor： Kameron Isaiah Chambliss , Benedict Osobmen Egboiyi , Lisa Marie Noni , Prakash Chandra Panda , Kevin Barry Reiman
IPC: G01N3/30
Abstract: Test apparatus and methods for impact testing specimens, including edge impact testing are disclosed. The apparatus and methods disclosed include a pendulum and a bob which are used to impact test specimens against an impacting object.
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公开(公告)号：US20230242442A1
公开(公告)日：2023-08-03
申请号：US18131031
申请日：2023-04-05
Applicant: Corning Incorporated
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
CPC classification number: C03C21/002 , C03C10/0018 , C03C10/0027
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.
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公开(公告)号：US11131611B2
公开(公告)日：2021-09-28
申请号：US16122214
申请日：2018-09-05
Applicant: CORNING INCORPORATED
Inventor： Kameron Isaiah Chambliss , Benedict Osobomen Egboiyi , Lisa Marie Noni , Prakash Chandra Panda , Kevin Barry Reiman
IPC: G01N3/30
Abstract: Test apparatus and methods for impact testing specimens, including edge impact testing are disclosed. The apparatus and methods disclosed include a pendulum and a bob which are used to impact test specimens against an impacting object.
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公开(公告)号：US20200148591A1
公开(公告)日：2020-05-14
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
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.
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