JP2022536124A - Fe-niナノコンポジット合金 - Google Patents
Fe-niナノコンポジット合金 Download PDFInfo
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- JP2022536124A JP2022536124A JP2021572629A JP2021572629A JP2022536124A JP 2022536124 A JP2022536124 A JP 2022536124A JP 2021572629 A JP2021572629 A JP 2021572629A JP 2021572629 A JP2021572629 A JP 2021572629A JP 2022536124 A JP2022536124 A JP 2022536124A
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- crystalline particles
- nanocomposite
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- amorphous
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- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C—ALLOYS
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- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
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- C—CHEMISTRY; METALLURGY
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
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- C—CHEMISTRY; METALLURGY
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Electromagnetism (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Thermal Sciences (AREA)
- Soft Magnetic Materials (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
本願は、米国特許法第120条に基づく、2019年6月7日に出願された米国特許出願第16/434,869号に対する優先権を主張し、その各々の内容全体が参照により本明細書に組み込まれる。
本発明は、国立科学財団によって授与された契約番号DMR0804020のもと米国政府の支援によりなされた。本発明は、陸軍研究所によって授与された契約番号W911NF-14-1-0184のもと米国政府の支援によりなされた。米国政府は本発明において一定の権利を有する。
本開示は、一般に、ナノコンポジット合金(又はナノ複合合金:nanocomposite alloys)に関する。より具体的には、本開示は、Fe-Niナノコンポジット合金に関する。
ナノコンポジットは、アモルファスマトリックス中の結晶性粒子、ここで結晶性粒子は、鉄(Fe)-ニッケル(Ni)化合物を含み、アモルファスマトリックスによって互いに分離されている;および、結晶性粒子とアモルファスマトリックスとの間の1つ以上の障壁(又はバリア:barriers)、ここで障壁は、結晶性粒子の形成中に結晶性粒子の成長を阻害するように構成され、1つ以上の障壁の障壁は、結晶性粒子とアモルファスマトリックスとの間にある;を含み、ここで、アモルファスマトリックスは、結晶性粒子の抵抗率と比較して増加した抵抗率を含む;ここで、アモルファスマトリックスは、アモルファスマトリックスなしで発生する結晶性粒子の損失と比較して、結晶性粒子に印加される磁場の変化によって引き起こされる結晶性粒子の損失を低減するように構成される。
図1は、1つ以上の結晶性粒子110、アモルファスマトリックス120、および拡散障壁130を含むナノコンポジット材料100を示す。結晶性粒子110は、結晶化プロセスによって形成され、以下でさらに詳細に記載される。一般に、結晶性粒子110(結晶子としても知られる)はそれぞれ、例えば、Fe-Ni合金などの金属材料の冷却中に形成される、小さなまたは微視的な「結晶」を含む。結晶性粒子110は、一般に、図1に見られるように、原子の規則的またはほぼ規則的な(near-regular)格子を含む。粒界は、結晶性粒子がアモルファスマトリックスなどの他の材料と接触する界面である。一般に、結晶性粒子110は、互いに接触しないが、比較的低抵抗率の結晶性粒子の間に比較的高抵抗率の材料を含むアモルファスマトリックス内にある(例えば、埋め込まれている)。結晶性粒子110は、平均直径が5~30nmであり、Fe-Ni合金で形成される。いくつかの実装では、ナノコンポジットにはNi20%~80%の範囲の材料が含まれる。結晶性粒子110は、アモルファスマトリックス120に埋め込まれた5~20nmの平均サイズを含み得る。いくつかの実装では、結晶性粒子110は、Fe-Ni合金を含む。結晶性粒子110の特性(例えば、磁気特性または抵抗特性)は、追加の材料を追加することによって調整され得る。以下でさらに詳細に記載するように、コバルトまたは銅などの他の金属が結晶性粒子110に含まれる。いくつかの実装では、様々なFe-Ni合金などの様々な合金で形成された結晶性粒子110を使用して、ナノコンポジットの抵抗率、透磁率、または他の特性を調整する。いくつかの実装では、結晶性粒子110は、それぞれ、ナノコンポジット100と同じ材料または合金から形成される。いくつかの実装では、結晶性粒子110は、ナノコンポジット100全体で組成が異なる。
Claims (20)
- アモルファスマトリックス中の結晶性粒子、ここで前記結晶性粒子は、鉄(Fe)-ニッケル(Ni)化合物を含み、前記アモルファスマトリックスによって互いに分離されている;および
前記結晶性粒子と前記アモルファスマトリックスとの間の1つ以上の障壁、ここで前記障壁は、前記結晶性粒子の形成中に前記結晶性粒子の成長を阻害するように構成されており、前記1つ以上の障壁のうちの1つの障壁は、前記結晶性粒子と前記アモルファスマトリックスとの間にある;を含んでいるナノコンポジットであって、
前記アモルファスマトリックスは、前記結晶性粒子の抵抗率と比較して、増加した抵抗率を含み、
前記アモルファスマトリックスは、前記結晶性粒子に印加される磁場の変化によって引き起こされる前記結晶性粒子の損失を、前記アモルファスマトリックスが無い状態で発生する前記結晶性粒子の損失と比較して、低減するように構成されている、ナノコンポジット。 - 前記結晶性粒子は、準安定で、面心立方体であるFe-Ni基を含む、請求項1に記載のナノコンポジット。
- 前記Fe-Ni基は、γ-FeNiナノ結晶を含む、請求項2に記載のナノコンポジット。
- 前記障壁はニオブ(Nb)を含み、前記アモルファスマトリックスは、前記アモルファスマトリックスのガラス形成能力を可能にするように共に構成されるホウ素(B)およびシリコン(Si)を含む、請求項1に記載のナノコンポジット。
- 銅核形成剤無しの成形プロセス中の前記結晶性粒子の核形成と比較して、成型プロセス中の前記結晶性粒子の核形成を増加させるように構成された銅(Cu)核形成剤をさらに含み、核形成の増加の結果として、前記結晶性粒子は10%以上減少している、請求項1に記載のナノコンポジット。
- 前記結晶性粒子は5~20nmの平均直径を含む、請求項1に記載のナノコンポジット。
- 15~30μmの厚さのリボンを形成している、請求項1に記載のナノコンポジット。
- 前記リボンに沿って長手方向である磁気異方性を含む、請求項7に記載のナノコンポジット。
- さらに、ホウ素(B)、炭素(C)、リン(P)、シリコン(Si)、クロム(Cr)、タンタル(Ta)、ニオブ(Nb)、バナジウム(V)、銅(Cu)、アルミニウム(Al)、モリブデン(Mo)、マンガン(Mn)、タングステン(W)およびジルコニウム(Zr)を含む1つ以上の金属を50原子%以下含む、請求項1に記載のナノコンポジット。
- 30原子%以下のコバルト(Co)を含む、請求項1に記載のナノコンポジット。
- 約30原子%のNiを含む、請求項1に記載のナノコンポジット。
- 前記結晶性粒子の抵抗率が約100μΩ・cmであり、前記アモルファスマトリックスの抵抗率が約150μΩ・cmである、請求項1に記載のナノコンポジット。
- 前記アモルファスマトリックスは、前記ナノコンポジットの超塑性応答を可能にするようにアニールされる、請求項1に記載のナノコンポジット。
- 前記アモルファスマトリックス中の前記結晶性粒子および拡散障壁は、10000超の比透磁率に調整される、ひずみアニールされた構造を含む、請求項1に記載のナノコンポジット。
- 前記結晶性粒子に印加される磁場の前記変化は、400Hz~5kHzの周波数で発生する、請求項1に記載のナノコンポジット。
- 前記損失は渦電流損失を含む、請求項1に記載のナノコンポジット。
- 1つ以上のコンポジット層、ここでコンポジット層の各層は、アモルファスマトリックス中のγ-FeNiナノ結晶であって100μΩ・cm未満の平均抵抗率を有するγ-FeNiナノ結晶と、100μΩ・cm超の抵抗率を有する前記アモルファスマトリックスと、を含む;および
1つ以上の前記γ-FeNiナノ結晶と前記アモルファスマトリクスとの間の各々にある1つ以上のホウ素拡散障壁であって、前記1つ以上の拡散障壁の各々は、前記γ-FeNiナノ結晶の形成中に前記γ-FeNiナノ結晶の拡散成長を阻害するように構成されている、1つ以上のホウ素拡散障壁;を含み、
前記γ-FeNiナノ結晶は、Niが約70原子%であり、
前記γ-FeNiナノ結晶の平均直径は、5nm~30nmであり、
前記1つ以上のコンポジット層は、各々が約25μm未満の厚さである、回転子積層体。 - 前記コンポジット層は、それぞれ10000超の比透磁率を含む、ひずみアニールされたコンポジットである、請求項17に記載の回転子積層体。
- 前記コンポジット層は、それぞれさらに銅を含む、請求項17に記載の回転子積層体。
- 回転子と、前記回転子を駆動するように構成された固定子とを含む電気モーターであって、
前記固定子は、30μm未満の厚さの多数の積層体を含み、各積層体は:
アモルファスマトリックス中の結晶性粒子、ここで、前記結晶性粒子は、鉄(Fe)-ニッケル(Ni)化合物を含み、前記アモルファスマトリックスによって互いに分離されている;および
前記結晶性粒子と前記アモルファスマトリックスとの間の1つ以上の障壁、ここで前記障壁は、前記結晶性粒子の形成中に、前記結晶性粒子の成長を阻害するように構成されており、前記1つ以上の障壁のうちの1つの障壁は、結晶性粒子と前記アモルファスマトリックスとの間にある;を含み、
前記回転子は、400Hzを超える周波数で動作するように構成されている、電気モーター。
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