公开(公告)号：US20210114920A1

公开(公告)日：2021-04-22

申请号：US17119037

申请日：2020-12-11

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  Qiang Fu ,  Charlene Marie Smith

IPC: C03C10/00 ,  C03C3/097 ,  C03B32/02 ,  C03C4/02 ,  C03C21/00

Abstract: In embodiments, a precursor glass composition comprises from about 55 wt. % to about 80 wt. % SiO2; from about 2 wt. % to about 20 wt. % Al2O3; from about 5 wt. % to about 20 wt. % Li2O; greater than 0 wt % to about 3 wt. % Na2O; a non-zero amount of P2O5 less than or equal to 4 wt. %; and from about 0.2 wt. % to about 15 wt. % ZrO2. In embodiments, ZrO2 (wt. %)+P2O5 (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.

公开(公告)号：US20210101824A1

公开(公告)日：2021-04-08

申请号：US17119023

申请日：2020-12-11

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  Qiang Fu ,  Charlene Marie Smith

IPC: C03C10/00 ,  C03C3/097 ,  C03C4/02 ,  C03B32/02 ,  C03C21/00

Abstract: In embodiments, a precursor glass comprising from about 55 wt. % to about 80 wt. % SiO2; from about 5 wt. % to about 20 wt. % Al2O3; from about 5 wt. % to about 20 wt. % Li2O; from about 2 wt. % to about 4 wt. % P2O5; and from about 0.2 wt. % to about 15 wt. % ZrO2.

公开(公告)号：US10781131B2

公开(公告)日：2020-09-22

申请号：US16257529

申请日：2019-01-25

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  Qiang Fu ,  Charlene Marie Smith ,  Randall Eugene Youngman

IPC: C03C10/12 ,  C03B32/02 ,  C03C10/00 ,  C03C21/00 ,  C03C3/093 ,  C03C3/097

Abstract: Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 60-75 SiO2; 10-18 Al2O3; 5-14 Li2O; and 4.5 B2O3. The glass-ceramics also have a Vickers initiation crack threshold of at least about 25 kgf.

公开(公告)号：US10427975B2

公开(公告)日：2019-10-01

申请号：US16181815

申请日：2018-11-06

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  Qiang Fu ,  Charlene Marie Smith

IPC: C03C10/00 ,  C03C21/00 ,  C03C3/097 ,  C03C4/02 ,  C03B32/00 ,  C03B32/02

Abstract: Glass and glass ceramic compositions having a combination of lithium silicate and petalite crystalline phases along with methods of making the glass and glass ceramic compositions are described. The compositions are compatible with conventional rolling and float processes, are transparent or translucent, and have high mechanical strength and fracture resistance. Further, the compositions are able to be chemically tempered to even higher strength glass ceramics that are useful as large substrates in multiple applications.

公开(公告)号：US20190256407A1

公开(公告)日：2019-08-22

申请号：US16310133

申请日：2017-06-26

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  Qiang Fu ,  Charlene Marie Smith

IPC: C03C10/00 ,  A61K6/027

Abstract: ZrO2-toughened glass ceramics having high molar fractions of tetragonal ZrO2 and fracture toughness value of greater than 1.8 MPa·m1/2. The glass ceramic may also include also contain other secondary phases, including lithium silicates, that may be beneficial for toughening or for strengthening through an ion exchange process. Additional second phases may also decrease the coefficient of thermal expansion of the glass ceramic. A method of making such glass ceramics is also provided.

公开(公告)号：US10239780B2

公开(公告)日：2019-03-26

申请号：US14878133

申请日：2015-10-08

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  Qiang Fu ,  Charlene Marie Smith

IPC: C03C10/04 ,  C03C10/12 ,  C03C21/00 ,  C03C3/097 ,  C03C4/02 ,  C03B32/02 ,  C03C10/00

Abstract: Glass and glass ceramic compositions having a combination of lithium silicate and petalite crystalline phases along with methods of making the glass and glass ceramic compositions are described. The compositions are compatible with conventional rolling and float processes, are transparent or translucent, and have high mechanical strength and fracture resistance. Further, the compositions are able to be chemically tempered to even higher strength glass ceramics that are useful as large substrates in multiple applications.

公开(公告)号：US10189741B2

公开(公告)日：2019-01-29

申请号：US15904926

申请日：2018-02-26

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  Qiang Fu ,  Charlene Marie Smith

IPC: C03C10/12 ,  C03C21/00 ,  C03C10/00 ,  C03B32/02 ,  C03C3/097 ,  C03C4/02

Abstract: Glass and glass ceramic compositions having a combination of lithium silicate and petalite crystalline phases along with methods of making the glass and glass ceramic compositions are described. The compositions are compatible with conventional rolling and float processes, are transparent or translucent, and have high mechanical strength and fracture resistance. Further, the compositions are able to be chemically tempered to even higher strength glass ceramics that are useful as large substrates in multiple applications.

公开(公告)号：US20180282205A1

公开(公告)日：2018-10-04

申请号：US16000186

申请日：2018-06-05

Applicant: CORNING INCORPORATED

Inventor： Qiang Fu ,  Charlene Marie Smith

IPC: C03C10/00 ,  C03C4/02 ,  C03B32/02 ,  C03C21/00 ,  C03C3/093

Abstract: Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO2; 10.5-18 Al2O3; 5-14 Li2O; 2-12 B2O3; and 0.4-2 Fe2O3. Additionally, these glasses and glass-ceramics can exhibit the following criteria: a ratio: [ Li 2  O + Na 2  O + K 2  O + MgO + ZnO ] [ Al 2  O 3 ] between 0.8 to 1.5. The glass-ceramics also exhibit colors at an observer angle of 10° and a CIE illuminant F02 determined with specular reflectance of a* between −0.5 and 0.5, b* between −2.5 and +2, and L* between 90 and 93.

公开(公告)号：US10017414B2

公开(公告)日：2018-07-10

申请号：US15348125

申请日：2016-11-10

Applicant: CORNING INCORPORATED

Inventor： Qiang Fu ,  Charlene Marie Smith

IPC: C03C10/00 ,  C03B32/02 ,  C03C21/00 ,  C03C3/093 ,  C03C4/02

CPC classification number: C03C10/0027 ,  C03B32/02 ,  C03C3/093 ,  C03C4/02 ,  C03C10/0054 ,  C03C21/002 ,  C03C2204/04

Abstract: Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO2; 10.5-18 Al2O3; 5-14 Li2O; 2-12 B2O3; and 0.4-2 Fe2O3. Additionally, these glasses and glass-ceramics can exhibit the following criteria: a ratio: [ Li 2 ⁢ O + Na 2 ⁢ O + K 2 ⁢ O + MgO + Zn ⁢ O ] [ Al 2 ⁢ O 3 ] between 0.8 to 1.5. The glass-ceramics also exhibit colors at an observer angle of 10° and a CIE illuminant F02 determined with specular reflectance of a* between −0.5 and 0.5, b* between −2.5 and +2, and L* between 90 and 93.

公开(公告)号：US20180099901A1

公开(公告)日：2018-04-12

申请号：US15728783

申请日：2017-10-10

Applicant: Corning Incorporated

Inventor： George Halsey Beally ,  Qiang Fu

IPC: C03C10/00 ,  C03C3/097 ,  C03B32/02

CPC classification number: C03C10/0027 ,  C03B32/02 ,  C03C3/097 ,  C03C10/0009 ,  C03C10/0054 ,  C03C2204/00

Abstract: A group of glass-ceramic compositions nucleated with ZrO2 and P2O5 can develop a microstructure composed of spherulite grains, which produce a high fracture toughness (about 1.5 MPa·m0.5 or higher). Also, the glass-ceramic articles can be cerammed to have a CTE value of 30×10−7/° C. or lower.