Patent · US Expired

Detection of oxidation of carbon-containing fibers or fiber bundles in composites

US7309609B2 · kind B2 · utility

2Cited by

3References

6Claims

0Family size

Assignee

SGL Carbon AG · DE

Inventors

Martin Christ · Osterode, DE
Michael Heine · Meitingen, DE

Key dates

Filing date	Jul 22, 2003
Grant date	Dec 18, 2007
Priority date	—
Expiry date	Jul 8, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/80
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to the detection of oxidation of carbon-containing fibers or fiber bundles embedded in a nonconductive or semiconducting ceramic matrix in composites wherein use is made of the eddy current method.

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