Patent · US Active

Crucible

US10844518B2 · kind B2 · utility

0Cited by

1References

22Claims

0Family size

Assignee

Plansee SE · AT

Inventors

Michael Mark · Matrei in Osttirol, AT
Hannes Traxler · Lechaschau, AT
Michael O'Sullivan · Reutte, AT
Wolfram Knabl · Reutte, AT
Alexander Lorich · Pflach, AT
Robert Schiftner · Ehrwald, AT

Key dates

Filing date	Jan 26, 2017
Grant date	Nov 24, 2020
Priority date	—
Expiry date	Jun 27, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC30B29/20
WIPO fieldSurface technology, coating
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.