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Title: Composite materials comprising two jonal functions and methods for making the same

Abstract

The present invention generally relates to mechanisms for preventing undesirable oxidation (i.e., oxidation protection mechanisms) in composite bodies. The oxidation protection mechanisms include getterer materials which are added to the composite body which gather or scavenge undesirable oxidants which may enter the composite body. The getterer materials may be placed into at least a portion of the composite body such that any undesirable oxidant approaching, for example, a fiber reinforcement, would be scavenged by (e.g., reacted with) the getterer. The getterer materials) may form at least one compound which acts as a passivation layer, and/or is able to move by bulk transport (e.g., by viscous flow as a glassy material) to a crack, and sealing the crack, thereby further enhancing the oxidation protection of the composite body. One or more ceramic filler materials which serve as reinforcements may have a plurality of super-imposed coatings thereon, at least one of which coatings may function as or contain an oxidation protection mechanism. Specifically, a coating comprising boron nitride which has been engineered or modified to contain some silicon exhibits improved corrosion resistance, specifically to oxygen and moisture. The coated materials may be useful as reinforcing materials in high performance composites to providemore » improved mechanical properties such as fracture toughness. The present invention also relates to improved composites which incorporate these materials, and to their methods of manufacture.« less

Inventors:
 [1];  [1];  [1];  [1];  [2]
  1. (Newark, DE)
  2. (Longmont, CO)
Publication Date:
Research Org.:
Honeywell Advanced Composites, Inc. (US)
OSTI Identifier:
873710
Patent Number(s):
US 6228453
Assignee:
Lanxide Technology Company, LP (Newark, DE); AlliedSignal Composites Inc. (Newark, DE) CHO
DOE Contract Number:  
FC02-92CE40994
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
composite; materials; comprising; jonal; functions; methods; relates; mechanisms; preventing; undesirable; oxidation; protection; bodies; getterer; added; gather; scavenge; oxidants; enter; placed; portion; oxidant; approaching; example; fiber; reinforcement; scavenged; reacted; form; compound; passivation; layer; move; bulk; transport; viscous; flow; glassy; material; crack; sealing; enhancing; ceramic; filler; serve; reinforcements; plurality; super-imposed; coatings; thereon; function; contain; mechanism; specifically; coating; boron; nitride; engineered; modified; silicon; exhibits; improved; corrosion; resistance; oxygen; moisture; coated; useful; reinforcing; performance; composites; provide; mechanical; properties; fracture; toughness; incorporate; manufacture; passivation layer; reinforcing material; comprising boron; coating comprising; provide improved; corrosion resistance; filler material; improved mechanical; composite materials; fracture toughness; boron nitride; mechanical properties; composite material; materials comprising; viscous flow; exhibits improved; ceramic filler; composite mat; omposite materials; provide improve; preventing undesirable; /428/

Citation Formats

Fareed, Ali Syed, Garnier, John Edward, Schiroky, Gerhard Hans, Kennedy, Christopher Robin, and Sonuparlak, Birol. Composite materials comprising two jonal functions and methods for making the same. United States: N. p., 2001. Web.
Fareed, Ali Syed, Garnier, John Edward, Schiroky, Gerhard Hans, Kennedy, Christopher Robin, & Sonuparlak, Birol. Composite materials comprising two jonal functions and methods for making the same. United States.
Fareed, Ali Syed, Garnier, John Edward, Schiroky, Gerhard Hans, Kennedy, Christopher Robin, and Sonuparlak, Birol. Mon . "Composite materials comprising two jonal functions and methods for making the same". United States. https://www.osti.gov/servlets/purl/873710.
@article{osti_873710,
title = {Composite materials comprising two jonal functions and methods for making the same},
author = {Fareed, Ali Syed and Garnier, John Edward and Schiroky, Gerhard Hans and Kennedy, Christopher Robin and Sonuparlak, Birol},
abstractNote = {The present invention generally relates to mechanisms for preventing undesirable oxidation (i.e., oxidation protection mechanisms) in composite bodies. The oxidation protection mechanisms include getterer materials which are added to the composite body which gather or scavenge undesirable oxidants which may enter the composite body. The getterer materials may be placed into at least a portion of the composite body such that any undesirable oxidant approaching, for example, a fiber reinforcement, would be scavenged by (e.g., reacted with) the getterer. The getterer materials) may form at least one compound which acts as a passivation layer, and/or is able to move by bulk transport (e.g., by viscous flow as a glassy material) to a crack, and sealing the crack, thereby further enhancing the oxidation protection of the composite body. One or more ceramic filler materials which serve as reinforcements may have a plurality of super-imposed coatings thereon, at least one of which coatings may function as or contain an oxidation protection mechanism. Specifically, a coating comprising boron nitride which has been engineered or modified to contain some silicon exhibits improved corrosion resistance, specifically to oxygen and moisture. The coated materials may be useful as reinforcing materials in high performance composites to provide improved mechanical properties such as fracture toughness. The present invention also relates to improved composites which incorporate these materials, and to their methods of manufacture.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}

Patent:

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