JP2019065398A - 積層磁芯 - Google Patents
積層磁芯 Download PDFInfo
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- JP2019065398A JP2019065398A JP2018221191A JP2018221191A JP2019065398A JP 2019065398 A JP2019065398 A JP 2019065398A JP 2018221191 A JP2018221191 A JP 2018221191A JP 2018221191 A JP2018221191 A JP 2018221191A JP 2019065398 A JP2019065398 A JP 2019065398A
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- 229910045601 alloy Inorganic materials 0.000 claims abstract description 95
- 239000000956 alloy Substances 0.000 claims abstract description 95
- 239000000203 mixture Substances 0.000 claims abstract description 56
- 239000013078 crystal Substances 0.000 claims abstract description 23
- 230000004907 flux Effects 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- 229910052785 arsenic Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000002159 nanocrystal Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 7
- 229910001339 C alloy Inorganic materials 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 86
- 238000010438 heat treatment Methods 0.000 description 73
- 239000011162 core material Substances 0.000 description 63
- 238000004519 manufacturing process Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 230000000630 rising effect Effects 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 238000010030 laminating Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000000113 differential scanning calorimetry Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007709 nanocrystallization Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000002076 thermal analysis method Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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Abstract
Description
前記Fe基ナノ結晶合金薄帯は、アモルファス相と50体積%以上のbccFe相とを含み、
前記bccFe相の平均結晶粒径が20nm以下であり、前記bccFe相の結晶粒径の偏差が平均粒径±5nmであり、
前記Fe基ナノ結晶合金薄帯の組成式FeaBbSicPxCyCuzでは、79≦a≦86at%、5≦b≦13at%、0<c≦8at%、1≦x≦8at%、0≦y≦5at%、0.4≦z≦1.4at%、及び0.08≦z/x≦0.8である
積層磁芯を提供する。
前記Fe基ナノ結晶合金薄帯は、アモルファス相と50体積%以上のbccFe相とを含み、
前記bccFe相の平均結晶粒径が20nm以下であり、前記bccFe相の結晶粒径の偏差が平均粒径±5nmであり、
前記Fe基ナノ結晶合金薄帯の組成式FeaBbSicPxCyCuzでは、79≦a≦86at%、5≦b≦13at%、0<c≦8at%、1≦x≦8at%、0≦y≦5at%、0.4≦z≦1.4at%、及び0.08≦z/x≦0.8であり、
Feの3at%以下を、Ti、Zr,Hf,Nb,Ta,Mo,W,Cr,Co,Ni,Al,Mn,Ag,Zn,Sn,As,Sb,Bi,Y,N,O及び希土類元素のうち、1種類以上の元素で置換してなる
積層磁芯を提供する。
前記Fe基ナノ結晶合金薄帯は、表裏表面に酸化膜を有している
積層磁芯を提供する。
前記Fe基ナノ結晶合金薄帯では、前記bccFe相が70体積%以上である
積層磁芯を提供する。
前記Fe基ナノ結晶合金薄帯では、前記bccFe相が73.3体積%以下である
積層磁心を提供する。
前記Fe基ナノ結晶合金薄帯では、前記bccFe相の平均結晶粒径が16nm以上である
積層磁心を提供する。
前記Fe基ナノ結晶合金薄帯の前記FeaBbSicPxCyCuzでは、81≦a≦86at%、5≦b≦10at%、0<c≦8at%、2≦x≦5at%、0≦y≦3at%、0.4≦z≦1.1at%、及び0.08≦z/x≦0.55である
積層磁芯を提供する。
前記Fe基ナノ結晶合金薄帯の厚さは、15〜40μmである
積層磁芯を提供する。
前記Fe基ナノ結晶合金薄帯の厚さは、32〜41μmである
積層磁芯を提供する。
前記Fe基ナノ結晶合金薄帯では、飽和磁束密度が1.75T以上であり、保磁力が10A/m以下である
積層磁心を提供する。
本実施の形態による合金組成物の熱処理方法を具現化した装置の模式図を用いて熱処理工程の手順を説明する。
まず、Fe,Si,B,P,Cu,Cの原料を合金組成Fe84.3Si0.5B9.4P4Cu0.8C1となるように秤量し、高周波誘導溶解処理により溶解した。その後、溶解した合金組成物を大気中において単ロール液体急冷法にて処理し、厚さ約25μm程度の厚さを持つ薄帯状合金組成物を作製した。これらの薄帯状合金組成物を幅10mm、長さ50mmに切り出し(形状加工工程)、X線回折法により相を同定した。これらの加工された薄帯状合金組成物は、いずれも主相としてアモルファス相を有していた。次に、表1記載の熱処理条件の下で、実施例1〜8及び比較例1〜12の条件で図4に示す装置を用いて熱処理した(熱処理工程)。熱処理前後での薄帯状合金組成物をDSC装置により40℃/分程度の昇温速度で熱分析評価し、得られた第一ピーク面積比により析出したbccFe結晶の体積分率を算出した。さらに、加工・熱処理された薄帯状合金組成物夫々の飽和磁束密度(Bs)は振動試料型磁力計(VMS)を用いて800kA/mの磁場にて測定した。各合金組成物の保磁力(Hc)は直流BHトレーサーを用い2kA/mの磁場にて測定した。測定結果を表1に併せて示す。
モータ用磁芯として、より実用的な形状に加工した薄帯状合金組成物を、本発明で規定する条件で図4に示した装置を用いて実施例2及び比較例3の条件で熱処理する。図2の製造方法のフローチャートに従い、これらを複数積層する。
2 上側ヒータ
3 下側ヒータ
4 排出機構
5 積層治具
6 加熱部
7 薄帯
Claims (10)
- 積層された複数のFe基ナノ結晶合金薄帯を備える積層磁芯であって、
前記Fe基ナノ結晶合金薄帯は、アモルファス相と50体積%以上のbccFe相とを含み、
前記bccFe相の平均結晶粒径が20nm以下であり、前記bccFe相の結晶粒径の偏差が平均粒径±5nmであり、
前記Fe基ナノ結晶合金薄帯の組成式FeaBbSicPxCyCuzでは、79≦a≦86at%、5≦b≦13at%、0<c≦8at%、1≦x≦8at%、0≦y≦5at%、0.4≦z≦1.4at%、及び0.08≦z/x≦0.8である
積層磁芯。 - 積層された複数のFe基ナノ結晶合金薄帯を備える積層磁芯であって、
前記Fe基ナノ結晶合金薄帯は、アモルファス相と50体積%以上のbccFe相とを含み、
前記bccFe相の平均結晶粒径が20nm以下であり、前記bccFe相の結晶粒径の偏差が平均粒径±5nmであり、
前記Fe基ナノ結晶合金薄帯の組成式FeaBbSicPxCyCuzでは、79≦a≦86at%、5≦b≦13at%、0<c≦8at%、1≦x≦8at%、0≦y≦5at%、0.4≦z≦1.4at%、及び0.08≦z/x≦0.8であり、
Feの3at%以下を、Ti、Zr,Hf,Nb,Ta,Mo,W,Cr,Co,Ni,Al,Mn,Ag,Zn,Sn,As,Sb,Bi,Y,N,O及び希土類元素のうち、1種類以上の元素で置換してなる
積層磁芯。 - 請求項1又は請求項2に記載の積層磁芯であって、
前記Fe基ナノ結晶合金薄帯は、表裏表面に酸化膜を有している
積層磁芯。 - 請求項1から請求項3までのいずれか1項に記載の積層磁芯であって、
前記Fe基ナノ結晶合金薄帯では、前記bccFe相が70体積%以上である
積層磁芯。 - 請求項1から請求項4までのいずれか1項に記載の積層磁芯であって、
前記Fe基ナノ結晶合金薄帯では、前記bccFe相が73.3体積%以下である
積層磁心。 - 請求項1から請求項5までのいずれか1項に記載の積層磁芯であって、
前記Fe基ナノ結晶合金薄帯では、前記bccFe相の平均結晶粒径が16nm以上である
積層磁心。 - 請求項1から請求項6までのいずれか1項に記載の積層磁芯であって、
前記Fe基ナノ結晶合金薄帯の前記FeaBbSicPxCyCuzでは、81≦a≦86at%、5≦b≦10at%、0<c≦8at%、2≦x≦5at%、0≦y≦3at%、0.4≦z≦1.1at%、及び0.08≦z/x≦0.55である
積層磁芯。 - 請求項1から請求項7までのいずれか1項に記載の積層磁芯であって、
前記Fe基ナノ結晶合金薄帯の厚さは、15〜40μmである
積層磁芯。 - 請求項1から請求項7までのいずれか1項に記載の積層磁芯であって、
前記Fe基ナノ結晶合金薄帯の厚さは、32〜41μmである
積層磁芯。 - 請求項1から請求項9までのいずれか1項に記載の積層磁芯であって、
前記Fe基ナノ結晶合金薄帯では、飽和磁束密度が1.75T以上であり、保磁力が10A/m以下である
積層磁心。
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