Patent · US Expired

Coating a composite article by applying a porous particulate layer and densifying the layer by subsequently applying a ceramic layer

US5441762A · kind A · utility

42Cited by

15References

4Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Paul E. Gray · North East, US
Mark H. Headinger · Midlothian, US

Key dates

Filing date	Mar 8, 1993
Grant date	Aug 15, 1995
Priority date	—
Expiry date	Mar 8, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S427/10
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Carbon or ceramic matrix composites are protected from oxidation at high temperatures by a layer formed from a mixture of solid particles in a binder which is cured and then coated with ceramic material by chemical vapor infiltration.

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