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.