Patent · US Expired

Method for manufacturing molded articles from a ceramic composite structure

US6436333B1 · kind B1 · utility

0Cited by

4References

24Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Guenter Knoll · Stuttgart, DE
Gert Lindemann · Lichtenstein, DE
Friederike Lindner · Wolfsberg, AT

Key dates

Filing date	Sep 30, 1999
Grant date	Aug 20, 2002
Priority date	—
Expiry date	Sep 30, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B35/645
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for manufacturing molded articles from a ceramic composite structure, in particular from a combination of tri-silicon tetranitride and a metal silicide, in which gas pressures up to 100 bar are used and the sintering additive content can be reduced to under 10 mass percent. This inert gas sintering pressure method makes possible larger molding free spaces in complicated geometrical structures of the molded articles, in contrast to the known methods. In addition, the electrical properties of this composite structure can be regulated by adjusting a defined nitrogen partial pressure.

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