JP6627818B2 - FeNi規則合金、FeNi規則合金磁石およびFeNi規則合金の製造方法 - Google Patents
FeNi規則合金、FeNi規則合金磁石およびFeNi規則合金の製造方法 Download PDFInfo
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- 229910002555 FeNi Inorganic materials 0.000 title claims description 190
- 229910045601 alloy Inorganic materials 0.000 title claims description 186
- 239000000956 alloy Substances 0.000 title claims description 186
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 238000011282 treatment Methods 0.000 claims description 137
- 238000005121 nitriding Methods 0.000 claims description 87
- 238000000034 method Methods 0.000 claims description 60
- 239000000463 material Substances 0.000 claims description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 239000002245 particle Substances 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 28
- 238000002441 X-ray diffraction Methods 0.000 claims description 26
- 239000013067 intermediate product Substances 0.000 claims description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 66
- 238000010438 heat treatment Methods 0.000 description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 230000001788 irregular Effects 0.000 description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 19
- 239000007789 gas Substances 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 9
- 238000005530 etching Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000002105 nanoparticle Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- 238000000975 co-precipitation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 150000004767 nitrides Chemical class 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000001451 molecular beam epitaxy Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910015371 AuCu Inorganic materials 0.000 description 1
- 229910015187 FePd Inorganic materials 0.000 description 1
- 229910005335 FePt Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 229920000314 poly p-methyl styrene Polymers 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 206010063401 primary progressive multiple sclerosis Diseases 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000005464 sample preparation method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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- H01F1/068—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 hard-magnetic materials metals or alloys in the form of particles, e.g. powder having a L10 crystallographic structure, e.g. [Co,Fe][Pt,Pd] (nano)particles
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Description
第1実施形態について説明する。本実施形態にかかるL10型のFeNi規則合金、すなわちFeNi超格子は、磁石材料および磁気記録材料等の磁性材料に適用されるものであり、規則度Sが0.4以上で、保磁力Hcが87.5kA/m以上と大きく、磁性特性に優れたものである。
。そして、図3(b)に示すように、容器部1a内にFeNi規則合金の粒子を10mg充填しつつ、図3(c)に示すように、容器部1aの開口部側から別のサンプルホルダー1の棒状部1bでFeNi規則合金を押さえる。このようにして、容器部1a内において円柱形状に形状を固定したサンプル2を作成する。そして、そのFeNi規則合金のサンプル2に対して、十分大きな磁場を印加しサンプル2の磁化がそれ以上大きくならないような飽和状態まで持っていく。その後先ほどとは逆方向の磁場を印加し、サンプル2の磁化がゼロになるタイミングを検出する。そのときの磁場の強さを保磁力Hcとしている。例えば、Quantum Desighn社製の小型無冷媒型PPMS VersaLabを用い、磁場掃引速度10[Oe]として磁場の強さを求めている。
i規則合金を製造することができず、規則度Sが0で、保磁力Hcも小さな値となった。
最も低い300℃においては処理時間を10時間以上にすることで、大きな保磁力Hcを得ることができた。このため、300℃より高い温度においては、処理時間を少なくとも
10時間以上にしていれば、保磁力Hcを87.5kA/m以上にすることができる。
第2実施形態について説明する。本実施形態は、第1実施形態に対して更に規則度Sを高くできるようにするものである。本実施形態においても、基本的な製造工程については第1実施形態と同様であるため、第1実施形態と異なる部分についてのみ説明する。
本発明は上記した実施形態に限定されるものではなく、特許請求の範囲に記載した範囲内において適宜変更が可能である。
Claims (7)
- L10型の規則構造を有し、材料の全体の平均的な規則度が0.4以上、かつ、保磁力が87.5kA/m以上であり、
X線回折測定にて現れる超格子回折のピークの積分強度をI sup 、基本回折のピークの積分強度をI fund として、前記L1 0 型の規則構造を有する材料における超格子回折のピークの積分強度I sup と基本回折のピークの積分強度I fund との比を(I sup /I fund ) obs とすると共に、FeNi不規則合金における超格子回折のピークの積分強度I sup と基本回折のピークの積分強度I fund との比を(I sup /I fund ) cal として、
前記規則度Sが、
- 体積平均粒径が45nm以上とされている請求項1に記載のFeNi規則合金。
- 前記規則度が0.7以上、かつ、前記保磁力が97.5kA/m以上である請求項1または2に記載のFeNi規則合金。
- 請求項1ないし3のいずれか1つに記載のFeNi規則合金を含み構成されたFeNi規則合金磁石。
- L10型の規則構造を有するFeNi規則合金の製造方法であって、
FeNi不規則合金(100)を窒化する窒化処理を行うことと、
前記窒化処理されたFeNi不規則合金から窒素を除去する脱窒素処理を行うことにより、材料の全体の平均的な規則度が0.4以上、かつ、保磁力が87.5kA/m以上であるL10型のFeNi規則合金を得ることと、を含み、
前記窒化処理を行うことでは、前記窒化処理の処理温度を300℃以上500℃以下とし、処理時間を10時間以上とするFeNi規則合金の製造方法。 - L10型の規則構造を有するFeNi規則合金の製造方法であって、
FeとNiとがL10型のFeNi規則構造と同じ格子構造で整列した化合物を合成することと、
前記化合物からFeとNi以外の不要な元素を除去することでL10型のFeNi規則合金を生成することと、を含み、
前記化合物を合成することでは、処理温度を200℃以上500℃以下とし、処理時間を10時間以上として、FeNi不規則合金を窒化処理することで前記化合物として中間生成物となるFeNiNを合成するFeNi規則合金の製造方法。 - FeNi不規則合金から酸化膜を除去することを含み、
前記化合物を合成することは、前記酸化膜を除去することの後に行われ、前記酸化膜が除去されたFeNi不規則合金を窒化処理することで中間生成物となるFeNiNを合成することである請求項6に記載のFeNi規則合金の製造方法。
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JP2017080025A JP6627818B2 (ja) | 2017-04-13 | 2017-04-13 | FeNi規則合金、FeNi規則合金磁石およびFeNi規則合金の製造方法 |
PCT/JP2018/015436 WO2018190405A1 (ja) | 2017-04-13 | 2018-04-12 | FeNi規則合金、FeNi規則合金磁石およびFeNi規則合金の製造方法 |
DE112018002014.2T DE112018002014T5 (de) | 2017-04-13 | 2018-04-12 | GEORDNETE FeNi-LEGIERUNG, MAGNET AUS GEORDNETER FeNi-LEGIERUNG UND VERFAHREN ZUR HERSTELLUNG EINER GEORDNETEN FeNi-LEGIERUNG |
CN201880024767.4A CN110506313B (zh) | 2017-04-13 | 2018-04-12 | FeNi有序合金、FeNi有序合金磁铁及FeNi有序合金的制造方法 |
US16/574,514 US11427895B2 (en) | 2017-04-13 | 2019-09-18 | FeNi ordered alloy, FeNi ordered alloy magnet, and method for manufacturing FeNi ordered alloy |
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JP4524078B2 (ja) | 2002-05-31 | 2010-08-11 | 富士フイルム株式会社 | 磁性粒子およびその製造方法、並びに、磁気記録媒体およびその製造方法 |
JP5892662B2 (ja) | 2011-04-11 | 2016-03-23 | 国立大学法人北海道大学 | L10型FeNi合金粒子及びその製造方法、磁性組成物並びに磁石 |
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JP6388190B2 (ja) | 2012-11-29 | 2018-09-12 | 善治 堀田 | L10型FeNi規則合金を含むFeNi系材料の製造方法、及びFeNi系材料 |
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CN106796838A (zh) | 2014-09-02 | 2017-05-31 | 东北大学 | 基于Fe‑Ni的不含稀土的永磁材料 |
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WO2016171232A1 (ja) * | 2015-04-23 | 2016-10-27 | 国立大学法人東北大学 | L10型FeNi規則相を含むFeNi合金組成物、L10型FeNi規則相を含むFeNi合金組成物の製造方法、アモルファスを主相とするFeNi合金組成物、アモルファス材の母合金、アモルファス材、磁性材料および磁性材料の製造方法 |
JP6332359B2 (ja) * | 2015-10-14 | 2018-05-30 | 株式会社デンソー | FeNi規則合金、FeNi規則合金の製造方法、および、FeNi規則合金を含む磁性材料 |
JP2017080025A (ja) | 2015-10-27 | 2017-05-18 | 株式会社平和 | 遊技機 |
CN105374374B (zh) * | 2015-10-30 | 2018-08-10 | 钢铁研究总院 | 一种高密度低成本磁记录介质FeNi合金及其制备方法 |
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