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：US20220332630A1

公开(公告)日：2022-10-20

申请号：US17725024

申请日：2022-04-20

Applicant: Schott AG

Inventor： Ulrich Fotheringham ,  Simone Monika Ritter ,  Bernd Rüdinger ,  Peter Nabe

IPC: C03C3/04 ,  G02C7/02

Abstract: A glass includes a composition characterized by the following constituent phases (in mol-%): 20-80 lanthanum titanate; 10-50 lanthanum niobate; 0-60 lanthanum molybdenum borate; 2-40 lanthanum borate; 2-40 yttrium borate; 0-40 gadolinium borate; 2-40 zirconium silicate; 2-40 diboron trioxide; and 0-20 silicon dioxide. A refractive index is at least 2.00.

公开(公告)号：US20210344039A1

公开(公告)日：2021-11-04

申请号：US17244355

申请日：2021-04-29

Applicant: SCHOTT AG

Inventor： Sebastian Leukel ,  Meike Schneider ,  Andreas Roters ,  Jörg Schumacher ,  Wolfgang Schmidbauer ,  Bernd Rüdinger

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M50/434

Abstract: The disclosure relates to an aluminum-doped lithium ion conductor based on a garnet structure comprising lanthanum, in particular an aluminum-doped lithium lanthanum zirconate (LLZO), in which the latter is co-doped with at least one trivalent M3+ ion on the lanthanum site, and in which the trivalent M3+ ion has an ionic radius that is smaller than that of La3+, and a higher lithium content is present in comparison to a stoichiometric garnet structure, with the provision that if M3+ is yttrium, a further trivalent M3+ ion, which is different than Y3+ and has an ionic radius that is smaller than that of La3+, is co-doped on the lanthanum site. A co-doping strategy is carried out, in which a doping on the lanthanum site with ions of the same valence, but smaller diameter brings about the change in the lattice geometry to the cubic modification. This leads to a stabilization of the cubic crystal modification that is present also with superstoichiometric quantities of lithium.