Patent · US Expired

Shaped body made of fiber-reinforced composites having a segmented covering layer, its production and its use

US6908660B2 · kind B2 · utility

7Cited by

3References

22Claims

0Family size

Assignee

SGL Carbon AG · DE

Inventors

Moritz Bauer · Augsburg, DE
Nadine Hander · Gersthofen, DE
Andreas Kienzle · Thierhaupten, DE
Rainer Zimmermann-Chopin · Meitingen, DE

Key dates

Filing date	Nov 22, 2002
Grant date	Jun 21, 2005
Priority date	—
Expiry date	Dec 30, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24612
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to shaped bodies made of fiber-reinforced ceramic composites and comprising a core zone and at least one covering layer which has a coefficient of thermal expansion which is higher than that of the core zone. The covering layer is an SiC-rich covering layer and is divided into segments which are separated from the adjacent segments by gaps or bridging zones of a material which is different from the material of the segments. The invention also relates to a process for producing such shaped bodies by infiltration of an intermediate body with molten silicon and their use for friction disks, in vehicle construction or as protective plates.

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