公开(公告)号：US20200071220A1

公开(公告)日：2020-03-05

申请号：US16610608

申请日：2018-04-19

Applicant: PLANSEE SE

Inventor： MICHAEL MARK ,  KARL-HEINZ LEITZ ,  HANNES TRAXLER

IPC: C03B5/027 ,  C30B35/00 ,  C30B29/20

Abstract: A glass melting component for use in a melt includes at least one guide structure for the conveying and/or nucleation of gas bubbles from the melt. The guide structure is present at least on a surface of the glass melting component which faces the melt during use of the glass melting component.

公开(公告)号：US20190024260A1

公开(公告)日：2019-01-24

申请号：US16073184

申请日：2017-01-26

Applicant: PLANSEE SE

Inventor： MICHAEL MARK ,  HANNES TRAXLER ,  MICHAEL O'SULLIVAN ,  WOLFRAM KNABL ,  ALEXANDER LORICH ,  ROBERT SCHIFTNER

IPC: C30B35/00

Abstract: A crucible includes a wall made of a base material of tungsten or molybdenum or of a material based on tungsten or molybdenum. A barrier layer is disposed at least in sections on an outer side of the wall and/or in the wall. The barrier layer is made of a metallic material having a greater affinity for carbon and/or oxygen than the base material. A method for using a crucible for producing single-crystal sapphire or fused quartz and a method for producing a crucible for high-temperature applications are also provided.

公开(公告)号：US20190177201A1

公开(公告)日：2019-06-13

申请号：US16088164

申请日：2017-03-23

Applicant: PLANSEE SE

Inventor： HANNES TRAXLER ,  MICHAEL MARK ,  ROBERT SCHIFTNER ,  WOLFRAM KNABL

IPC: C03B5/425 ,  C22F1/18 ,  B22F3/24 ,  C03B5/167 ,  C03B5/43

Abstract: A process for producing a glass melting component composed of refractory metal. A surface zone of the glass melting component is densified at least in sections by application of local compressive stress. As a result the surface zone has its porosity reduced compared to a volume section which is located underneath the surface zone and which has residual porosity.