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

Fareed, Ali Syed; Garnier, John Edward; Schiroky, Gerhard Hans; Kennedy, Christopher Robin; Sonuparlak, Birol

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

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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 » « less

Inventors:

Fareed, Ali Syed ^[1]; Garnier, John Edward ^[1]; Schiroky, Gerhard Hans ^[1]; Kennedy, Christopher Robin ^[1]; Sonuparlak, Birol ^[2]

Newark, DE
Longmont, CO

Issue Date:: 2001-01-01

Research Org.:: Honeywell Advanced Composites, Inc. (US)

OSTI Identifier:: 873710

Patent Number(s):: 6228453

Assignee:: Lanxide Technology Company, LP (Newark, DE); AlliedSignal Composites Inc. (Newark, DE)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

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B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
B32B18/00 - Layered products essentially comprising ceramics, e.g. refractory products

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B14/4693 - {Silicon carbide}
C04B2235/3279 - Nickel oxides, nickalates, or oxide-forming salts thereof
C04B2235/3454 - Calcium silicates, e.g. wollastonite
C04B2235/40 - Metallic constituents or additives not added as binding phase
C04B2235/401 - Alkaline earth metals
C04B2235/402 - Aluminium
C04B2235/405 - Iron group metals
C04B2235/407 - Copper
C04B2235/428 - Silicon
C04B2235/46 - Gases other than oxygen used as reactant, e.g. nitrogen used to make a nitride phase
C04B2235/5244 - Silicon carbide
C04B2235/5256 - Two-dimensional, e.g. woven structures
C04B2235/526 - characterised by the length of the fibers
C04B2235/5264 - characterised by the diameter of the fibers
C04B2235/5268 - Orientation of the fibers
C04B2235/5436 - micrometer sized, i.e. from 1 to 100 micron
C04B2235/6028 - Shaping around a core which is removed later
C04B2235/614 - Gas infiltration of green bodies or pre-forms
C04B2235/6562 - Heating rate
C04B2235/6567 - Treatment time
C04B2235/6586 - Processes characterised by the flow of gas
C04B2235/6587 - Influencing the atmosphere by vaporising a solid material, e.g. by using a burying of sacrificial powder
C04B2235/662 - Annealing after sintering
C04B2235/96 - Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
C04B2237/343 - Alumina or aluminates
C04B2237/38 - Fiber or whisker reinforced
C04B2237/586 - by joining layers or articles of the same composition but having different densities
C04B35/117 - Composites
C04B35/581 - based on aluminium nitride
C04B35/62844 - {Coating fibres}
C04B35/62852 - {Alumina or aluminates}
C04B35/62863 - {Silicon carbide}
C04B35/62868 - {Boron nitride}
C04B35/62871 - {Silicon nitride}
C04B35/62884 - {by gas phase techniques}
C04B35/62894 - {with more than one coating layer}
C04B35/62897 - {Coatings characterised by their thickness}
C04B35/652 - {Directional oxidation or solidification, e.g. Lanxide process}
C04B35/653 - Processes involving a melting step
C04B35/80 - Fibres, filaments, whiskers, platelets, or the like {
C04B41/009 - {characterised by the material treated}
C04B41/4531 - {by C.V.D.}
C04B41/5031 - {Alumina}
C04B41/5059 - {Silicon carbide}
C04B41/5064 - {Boron nitride}
C04B41/5066 - {Silicon nitride}
C04B41/52 - Multiple coating or impregnating {multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation}
C04B41/522 - {Multiple coatings, for one of the coatings of which at least one alternative is described}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/12035 - Fiber, asbestos, or cellulose in or next to particulate component
Y10T428/12056 - Entirely inorganic
Y10T428/12458 - having composition, density, or hardness gradient
Y10T428/15 - Sheet, web, or layer weakened to permit separation through thickness
Y10T428/2991 - Coated

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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.

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                    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.

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                    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.

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@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         = {2001},

  month        = {1}

}

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