Gregory N Morscher

US Patent:

7427428, Sep 23, 2008

Filed:

Jun 24, 2003

Appl. No.:

10/601657

Inventors:

James A. DiCarlo - North Olmsted OH, US
Ramakrishna Bhatt - North Olmstead OH, US
Gregory N. Morscher - Stow OH, US

Assignee:

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration - Washington DC

International Classification:

B05D 3/02
B32B 9/04
D02G 3/02
C04B 35/80

US Classification:

4273761, 4273722, 4273741, 4273762, 4273766, 428367, 428368, 501 953, 501 961, 501 963, 501 964

Abstract:

A ceramic matrix composite material is disclosed having non-oxide ceramic fibers, which are formed in a complex fiber architecture by conventional textile processes; a thin mechanically weak interphase material, which is coated on the fibers; and a non-oxide or oxide ceramic matrix, which is formed within the interstices of the interphase-coated fiber architecture. During composite fabrication or post treatment, the interphase is allowed to debond from the matrix while still adhering to the fibers, thereby providing enhanced oxidative durability and damage tolerance to the fibers and the composite material.