JP2023503778A - アルミニウム系金属粉末及びその生成方法 - Google Patents
アルミニウム系金属粉末及びその生成方法 Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims abstract description 285
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 279
- 239000002184 metal Substances 0.000 title claims abstract description 279
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 27
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- 238000004519 manufacturing process Methods 0.000 title description 8
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 description 33
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- 230000011218 segmentation Effects 0.000 description 7
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
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- 229910052749 magnesium Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
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- 210000003625 skull Anatomy 0.000 description 1
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- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0408—Light metal alloys
- C22C1/0416—Aluminium-based alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
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- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
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- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
- C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
- C22C1/056—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds using gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0848—Melting process before atomisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F2201/00—Treatment under specific atmosphere
- B22F2201/03—Oxygen
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- 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
- B22F2202/00—Treatment under specific physical conditions
- B22F2202/13—Use of plasma
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- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
Description
本出願は、2019年9月27日に出願された米国仮特許出願第62/906,960号の優先権を主張し、これは、全ての目的のために参照により本明細書に組み込まれる。
・分析チャンバ内における8×10-10Torrの基準圧力、又はより低い圧力の真空中。
・電子ビーム:20kV、5nA。
・アルゴンのイオンスパッタリングビーム:2kV、1μA、3×3mmのラスタ領域、0.3分のスパッタリング間隔、電子ビームから30°のステージ傾斜(シリコンウェハ上の熱成長SiO2層に対して、12Å/分のスパッタリング速度を提供するSiO2の参照材料を使用)。
・オージェ検出限界:0.5原子パーセント。
・生のピーク強度は、Physical Electronics(PHI)から供給された感度因子を用いて、原子パーセントに変換した。算出された原子濃度の誤差は未知であるが、前記値は、分析位置と試料との比較に使用することができる。
・視野:最大シグマ=16.0、最小シグマ=0.0
・膜厚:1、パッチサイズ:19
・3つの分類:粒、デンドライト境界(interdendrite)、孔
・次の特徴を伴うFastRandomForestモデル:ガウスぼかし、ソーベルフィルタ、ヘッセ(Hessian)、ガウス差分、膜投影(Membrane projections)、分散(Variance)、
・平均、中央値(92の全属性を使用)
Claims (19)
- 少なくとも50重量%のアルミニウムを含む複数のAl系金属粒子を含む金属粉末であって、前記複数のAl系金属粒子は、Al系金属粒子の第1部分を含み、前記Al系金属粒子の第1部分は、正規化された最大酸素濃度の50%である正規化された半酸素濃度を含み、粒子表面積に対する前記正規化された半酸素濃度は、オージェ電子分光法によって測定される場合、0.002分/μm2以上である、金属粉末。
- 前記Al系金属粒子の前記第1部分が、前記金属粉末の前記複数のAl系金属粒子の少なくとも40重量%を構成する、請求項1に記載の金属粉末。
- 前記Al系金属粒子の前記第1部分が、前記金属粉末の前記複数のAl系金属粒子の50%~99%を構成する、請求項1に記載の金属粉末。
- 粒子表面積に対する前記正規化半酸素濃度が、オージェ電子分光法によって測定される場合、0.002分/μm2~0.003分/μm2である、請求項1に記載の金属粉末。
- 前記Al系金属粒子の第1部分の各Al系金属粒子が、0.2%以下の平均空隙率を有する、請求項1に記載の金属粉末。
- 前記Al系金属粒子の第1部分が、75%以上の平均粒比率測定値を有する、請求項1に記載の金属粉末。
- 前記複数のAl系金属粒子内の前記粒子の過半が、線状切片測定に従って測定された場合、3.5未満である粒子/10μm線の平均を有する、請求項1に記載の金属粉末。
- 前記複数のAl系金属粒子内の前記粒子の過半が、線状切片測定に従って測定された場合、2~3である粒子/10μm線の平均を有する、項1に記載の金属粉末。
- 前記金属粉末が、少なくとも70重量%のAlを含む、請求項1に記載の金属粉末。
- 前記金属粉末が、75重量%~99重量%のアルミニウムを含む、請求項1に記載の金属粉末。
- 前記Al系金属粒子の第1部分の各Al系金属粒子が、酸素富化層及び窒素富化層を含む表面層を含む、請求項1に記載の金属粉末。
- 前記金属粉末が、プラズマアトマイズ金属粉末である、請求項1に記載の金属粉末。
- 前記酸素が、前記Al系金属粒子の第1部分の各Al系金属粒子中に酸化物として存在する、請求項1に記載の金属粉末。
- 前記酸化物が、酸化ケイ素、酸化アルミニウム、酸化マグネシウム、又はそれらの混合物を含む、請求項13に記載の金属粉末。
- 前記Al系金属粉末が、15~53μmの粒子径分布、及び180秒以下のホール流動性(Hall flowability)を有する、請求項1に記載の金属粉末。
- 前記Al系金属粉末が、15~63μmの粒子径分布、及び100秒以下のホール流動性を有する、請求項1に記載の金属粉末。
- Al系金属粒子がプラズマ場内で形成されるように、アトマイザの加熱領域内にAl系源金属を供給することであって、ここで、前記Al系金属源材料は、少なくとも50重量%のアルミニウムを含み、且つ初期酸素濃度を有する、供給することと、
前記Al系金属粒子の過半が前記Al系金属源材料の前記初期酸素濃度よりも高い粒子酸素濃度を有するように、前記アトマイザ中に酸素を供給することと、
を含む、Al系金属粒子の金属粉末を形成する方法。 - 前記初期酸素濃度が、10重量ppm未満であり、前記粒子酸素濃度が、30重量ppmを超える、請求項1に記載の方法。
- 加熱されたAl系金属源をアトマイズして、原料Al系金属粉末を生成することと、
前記加熱されたAl系金属源を、アトマイズガス及び酸素含有ガスと接触させることと、
前記Al系金属粒子の過半が前記Al系金属源材料の前記初期酸素濃度よりも高い粒子酸素濃度を有するように、前記酸素を用いて、前記原料Al系金属粉末内に酸化物を形成することと、
を含む、Al系金属粉末アトマイズ製造方法。
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