公开(公告)号：US20190062201A1

公开(公告)日：2019-02-28

申请号：US16105997

申请日：2018-08-21

Applicant: SCHOTT AG

Inventor： Evelin Weiss ,  Martin Spier ,  Matthias Bockmeyer ,  Thomas Zenker ,  Klaus Schönberger ,  Johannes Stinner ,  Oliver Hochrein ,  Uwe Martens ,  Michael Bug

IPC: C03C10/00

Abstract: A description is given of a coloured, transparent, lithium aluminium silicate glass-ceramic and also of the use thereof, said glass-ceramic possessing a light transmission Y of 2.5% to 10% and a spectral transmission τ(at 465 nm) of more than 1.0%.

公开(公告)号：US10183888B2

公开(公告)日：2019-01-22

申请号：US14757392

申请日：2015-12-23

Applicant: SCHOTT AG

Inventor： Falk Gabel ,  Oliver Hochrein ,  Evelin Weiss ,  Roland Dudek ,  Uwe Martens

IPC: C03C3/097 ,  C03C10/12 ,  C03C23/00 ,  C03B32/02 ,  C03C10/00

Abstract: A glass ceramic substrate made of a transparent, colored LAS glass ceramic is provided. The glass ceramic has a gradient layer with keatite solid solution and an underlying core with high-quartz solid solution as predominant crystal phase. The keatite solid solution in a depth of 10 μm or greater exceeds 50% of the sum of the high-quartz solid solution proportion and keatite solid solution proportion. The ceramization includes a crystal transformation step, in which the high-quartz solid solution is transformed at a maximum temperature in the range of 910° to 980° and a time period of between 1 and 25 minutes in part into the keatite solid solution.

公开(公告)号：US20240199474A1

公开(公告)日：2024-06-20

申请号：US18542367

申请日：2023-12-15

Applicant: SCHOTT AG

Inventor： Meike Schneider ,  Bernd Rüdinger ,  Uwe Martens

IPC: C03C10/00 ,  C03B32/02 ,  C03C1/00 ,  C03C21/00

CPC classification number: C03C10/0009 ,  C03B32/02 ,  C03C1/004 ,  C03C10/0054 ,  C03C21/002 ,  C03C2204/00 ,  H05K5/03

Abstract: A transparent, chemically prestressable or chemically prestressed glass ceramic is provided. The glass ceramic has keatite as a main crystal phase, a transmittance greater than 80% at a thickness of 0.7 mm, a haze of less than or equal to 10, and a crystal phase content of at least 80% by weight of keatite solid solution based on all crystal phases in the glass ceramic.

公开(公告)号：US20240199473A1

公开(公告)日：2024-06-20

申请号：US18542213

申请日：2023-12-15

Applicant: SCHOTT AG

Inventor： Meike Schneider ,  Bernd Rüdinger ,  Uwe Martens

IPC: C03C10/00 ,  C03B32/02 ,  C03C21/00 ,  H05K5/03

CPC classification number: C03C10/0009 ,  C03B32/02 ,  C03C10/0054 ,  C03C21/002 ,  H05K5/03 ,  C03C2204/00

Abstract: A transparent, chemically prestressable or chemically prestressed glass ceramic has a high transmittance, a low haze and a high crystal phase content of keatite solid solution. A method of making such a glass ceramic includes producing a silicate green glass with a melting process and subsequent hot shaping, temperature treating the silicate green glass with at least one nucleation step carried out in the temperature range of 690° C. to 850° C. for a period of 5 min to 72 h and at least one ceramization step carried out in the temperature range of 780° ° C. to 1100° C. for a period of 3 min to 150 h, and performing at least one ion exchange in an exchange bath at a temperature of the exchange bath between 370° C. and 500° ° C. for a period of between 2 hours and 50 hours

公开(公告)号：US20160176752A1

公开(公告)日：2016-06-23

申请号：US14757392

申请日：2015-12-23

Applicant: SCHOTT AG

Inventor： Falk Gabel ,  Oliver Hochrein ,  Evelin Weiss ,  Roland Dudek ,  Uwe Martens

IPC: C03C10/00 ,  C03B32/02

CPC classification number: C03C10/0027 ,  C03B32/02 ,  C03C3/097 ,  C03C23/007

Abstract: A glass ceramic substrate made of a transparent, colored LAS glass ceramic is provided. The glass ceramic has a gradient layer with keatite solid solution and an underlying core with high-quartz solid solution as predominant crystal phase. The keatite solid solution in a depth of 10 μm or greater exceeds 50% of the sum of the high-quartz solid solution proportion and keatite solid solution proportion. The ceramization includes a crystal transformation step, in which the high-quartz solid solution is transformed at a maximum temperature in the range of 910° to 980° and a time period of between 1 and 25 minutes in part into the keatite solid solution.

Abstract translation: 提供由透明的有色LAS玻璃陶瓷制成的玻璃陶瓷基片。 玻璃陶瓷具有具有酮钙石固溶体的梯度层和具有高石英固溶体作为主要晶相的下层核心。 深度为10μm以上的凯氏体固溶体超过了高石英固溶体比例和酮钙石固溶体比例之和的50％以上。 陶瓷化包括晶体转变步骤，其中将高石英固溶体在910°至980°的范围内的最高温度和1至25分钟的时间段内部分转化为酮钙石固溶体。

公开(公告)号：US12227444B2

公开(公告)日：2025-02-18

申请号：US16105997

申请日：2018-08-21

Applicant: SCHOTT AG

Inventor： Evelin Weiss ,  Martin Spier ,  Matthias Bockmeyer ,  Thomas Zenker ,  Klaus Schönberger ,  Johannes Stinner ,  Oliver Hochrein ,  Uwe Martens ,  Michael Bug

IPC: C03C10/00 ,  C03C3/087 ,  C03C3/097 ,  C03C4/02 ,  F24C15/10

Abstract: A description is given of a coloured, transparent, lithium aluminium silicate glass-ceramic and also of the use thereof, said glass-ceramic possessing a light transmission Y of 2.5% to 10% and a spectral transmission τ(at 465 nm) of more than 1.0%.

公开(公告)号：US20230100027A1

公开(公告)日：2023-03-30

申请号：US17895166

申请日：2022-08-25

Applicant: SCHOTT AG

Inventor： Hüseyin Özcoban ,  Evelin Weiss ,  Susanne Krüger ,  Uwe Martens ,  Friedrich Siebers ,  Thoralf Johansson

IPC: C03C10/00 ,  C03C4/02 ,  C03B32/02

Abstract: A lithium aluminum silicate glass ceramic, which, apart from unavoidable impurities, is As2O3-free and Sb2O3-free. The lithium aluminum silicate glass ceramic has keatite as primary crystal phase and a keatite peak temperature TP of the keatite solid solution formation in the range of 980° C. to 1090° C., and the keatite peak temperature TP is determined by dynamic differential calorimetry (DSC) in accordance with DIN 51007:2019-04 at a heating rate of 5 K/min. A ceramization method is also described.