Patent · US Expired

Fiber-reinforced ceramic composite

US6824862B2 · kind B2 · utility

6Cited by

5References

12Claims

0Family size

Assignee

SGL Carbon AG · DE

Inventors

Moritz Bauer · Augsburg, DE
Georg Burkhart · Essen, DE
Martin Christ · Osterode, DE
Ronald Huener · Adenau, DE
Andreas Kienzle · Thierhaupten, DE
Peter Winkelmann · Thierhaupten, DE
Rainer Zimmermann-Chopin · Meitingen, DE

Key dates

Filing date	Dec 23, 2002
Grant date	Nov 30, 2004
Priority date	—
Expiry date	Jan 22, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/30
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Fiber-reinforced ceramic composites contain bundles, tows or hanks of long fibers, wherein the long fiber bundles, tows or hanks are completely surrounded by a short fiber-reinforced matrix, with the long and short fibers having, independently of one another, a mean diameter of from 4 to 12 &mgr;m and the long fibers having a mean length of at least 50 mm and the short fibers having a mean length of not more than 40 mm, a process for producing them and their use for producing clutch disks or brake disks.

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