Patent · US Expired

Production of nonoxide monolithic ceramic shaped articles

US5294574A · kind A · utility

3Cited by

3References

18Claims

0Family size

Assignees

Elf Atochem S.A. · FR
Max-Planck-Institut fur Metallforschung · DE

Inventors

Ralf Riedel · Echterdingen, DE
Gerd Passing · Wermelskirchen, DE
Richard J. Brook · Stuttgart, DE
Christian Colombier · Val-de-Reuil, FR
Maurice Gonon · Saint-Priest, FR
Gilbert Fantozzi · Meyzieu, FR

Key dates

Filing date	Apr 3, 1992
Grant date	Mar 15, 1994
Priority date	—
Expiry date	Apr 3, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B41/87
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Crack-free, dense and either amorphous or crystalline, nonoxide monolithic ceramic shaped articles are produced at relatively low temperatures, by shaping a powder (P) of an infusible, organometallic ceramic precursor polymer (Pi) into a green body having a relative density of at least 65%, and thence pyrolyzing such shaped green body.

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