公开(公告)号：US09862633B2

公开(公告)日：2018-01-09

申请号：US14982502

申请日：2015-12-29

Applicant: Schott AG

Inventor： Falk Gabel ,  Otmar Becker ,  Michael Glasenapp ,  Jan-Peter Ortmann ,  Petra Grewer ,  Veit Luther ,  Harald Striegler ,  Dietmar Wennemann ,  Thomas Schuler ,  Thoralf Johansson ,  Helga Goetz ,  Michael Bug ,  Guenther Siebenhaar ,  Gerhard Hahn ,  Friedrich-Georg Schroeder

IPC: C03B32/02 ,  C03C10/00

CPC classification number: C03B32/02 ,  C03C10/0027 ,  C03C10/0036 ,  Y02P40/57 ,  Y10T428/315

Abstract: A lithium-containing, transparent glass-ceramic material is provided. The material has low thermal expansion and has an amorphous, lithium-depleted, vitreous surface zone. The zone is at least 50 nm thick on all sides and encloses a crystalline interior, which has high transmission. The material includes a transition region connecting the zone and the interior.