WO2012094050A3 - Method of making aluminum nitride armor bodies - Google Patents

Method of making aluminum nitride armor bodies Download PDF

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Publication number
WO2012094050A3
WO2012094050A3 PCT/US2011/057838 US2011057838W WO2012094050A3 WO 2012094050 A3 WO2012094050 A3 WO 2012094050A3 US 2011057838 W US2011057838 W US 2011057838W WO 2012094050 A3 WO2012094050 A3 WO 2012094050A3
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WO
WIPO (PCT)
Prior art keywords
aluminum nitride
armor
aluminum
raw material
making aluminum
Prior art date
Application number
PCT/US2011/057838
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French (fr)
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WO2012094050A2 (en
Inventor
John Carberry
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John Carberry
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Publication date
Application filed by John Carberry filed Critical John Carberry
Publication of WO2012094050A2 publication Critical patent/WO2012094050A2/en
Publication of WO2012094050A3 publication Critical patent/WO2012094050A3/en

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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/581—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on aluminium nitride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/6261—Milling
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62625—Wet mixtures
    • C04B35/6264—Mixing media, e.g. organic solvents
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    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
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    • B22—CASTING; POWDER METALLURGY
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    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/402—Aluminium
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    • C04B2235/46—Gases other than oxygen used as reactant, e.g. nitrogen used to make a nitride phase
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    • C04B2235/46—Gases other than oxygen used as reactant, e.g. nitrogen used to make a nitride phase
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    • C04B2235/54—Particle size related information
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Abstract

A method of making aluminum nitride armor bodies is provided. The method starts with low cost bulk raw material, in the form of aluminum or aluminum alloy, cryogenically mills the raw material into a precursor powder, which is essentially free of oxides and other undesirable impurities. The precursor powder is formed into a pre¬ form using low cost, short residence time molding processes. Finally, the pre-form is exposed to a nitriding process to convert the pre-form into the aluminum nitride armor body. In this manner, the method avoids the use of high cost aluminum nitride as a starting material and avoids the need for the high cost, single axis densification processes of the prior art.
PCT/US2011/057838 2010-10-26 2011-10-26 Method of making aluminum nitride armor bodies WO2012094050A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40680110P 2010-10-26 2010-10-26
US61/406,801 2010-10-26

Publications (2)

Publication Number Publication Date
WO2012094050A2 WO2012094050A2 (en) 2012-07-12
WO2012094050A3 true WO2012094050A3 (en) 2014-04-03

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PCT/US2011/057838 WO2012094050A2 (en) 2010-10-26 2011-10-26 Method of making aluminum nitride armor bodies

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WO (1) WO2012094050A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101884979B1 (en) * 2016-03-10 2018-08-02 이건배 A manufacturing method of aluminum nitride and an aluminum nitride prepared by the same
US11067033B2 (en) * 2017-05-17 2021-07-20 Tenneco Inc. Dual gallery steel piston
FR3072378B1 (en) * 2017-10-12 2019-11-08 Commissariat A L'energie Atomique Et Aux Energies Alternatives DEVICE AND METHOD FOR MANUFACTURING CRYOGENIC CERAMIC PIECES

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5047182A (en) * 1987-11-25 1991-09-10 Ceramics Process Systems Corporation Complex ceramic and metallic shaped by low pressure forming and sublimative drying
US5443917A (en) * 1991-05-24 1995-08-22 Gte Products Corporation Ceramic armor
US7344675B2 (en) * 2003-03-12 2008-03-18 The Boeing Company Method for preparing nanostructured metal alloys having increased nitride content
US20090256014A1 (en) * 2004-10-06 2009-10-15 Showa Denko K.K. Niobium powder, niobium granulated powder, niobium sintered body, capacitor and production method thererof
US20100236666A1 (en) * 2009-03-19 2010-09-23 Bampton Clifford C Superalloy powder, method of processing, and article fabricated therefrom

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5047182A (en) * 1987-11-25 1991-09-10 Ceramics Process Systems Corporation Complex ceramic and metallic shaped by low pressure forming and sublimative drying
US5443917A (en) * 1991-05-24 1995-08-22 Gte Products Corporation Ceramic armor
US7344675B2 (en) * 2003-03-12 2008-03-18 The Boeing Company Method for preparing nanostructured metal alloys having increased nitride content
US20090256014A1 (en) * 2004-10-06 2009-10-15 Showa Denko K.K. Niobium powder, niobium granulated powder, niobium sintered body, capacitor and production method thererof
US20100236666A1 (en) * 2009-03-19 2010-09-23 Bampton Clifford C Superalloy powder, method of processing, and article fabricated therefrom

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US20120263620A1 (en) 2012-10-18

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