Patent · US Expired

Process for the production of nitrides suitable for ceramic materials

US5002640A · kind A · utility

1Cited by

5References

21Claims

0Family size

Assignee

Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

Christian Rüssel · Nürnberg, DE
Michael Seibold · Schwäbisch Gmünd, DE

Key dates

Filing date	Feb 28, 1989
Grant date	Mar 26, 1991
Priority date	—
Expiry date	Feb 28, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC25B1/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A process for the production of nitrides for ceramic materials, in particr ALN, is described in which the element to be converted to the nitride is anodically oxidized. This oxidation is carried out in the presence of a nitrogen compound which can be reduced under the electrolysis conditions and of a substance which increases the conductivity. The electrolysis is followed, if necessary, by removal of volatile constituents and calcination of the product.

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