TWI271439B - Fe-based amorphous metal alloy having a linear BH loop - Google Patents

Fe-based amorphous metal alloy having a linear BH loop Download PDF

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TWI271439B
TWI271439B TW092102531A TW92102531A TWI271439B TW I271439 B TWI271439 B TW I271439B TW 092102531 A TW092102531 A TW 092102531A TW 92102531 A TW92102531 A TW 92102531A TW I271439 B TWI271439 B TW I271439B
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iron
alloy
based alloy
magnetic field
amorphous iron
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Ronald J Martis
Ryusuke Hasegawa
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Metglas Inc
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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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • 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
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • 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
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15341—Preparation processes therefor

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Description

(1) 1271439 玖、發明說明 (發明說明應敘明：發明所屬之技術領域、先前技術、内容、實施方式及圖式簡單說明) #浙領1 本發明係關於一種鐵磁性非晶形金屬合金，特別是關 於一種退火合金使相關施加磁場之磁化曲線變成線性之 方法。 金屬玻璃為缺乏任何長範圍順序之介穩材料。X線繞 射掃描玻璃金屬合金顯示只有與在無機氧化物玻璃上觀 察到者相似之擴散光環。金屬玻璃（非晶形金屬合金）已 揭示在美國專利第3,8 56,5 1 3號。這些合金包括具化學式 MaYbZ。之組合物，其中Μ為選自由鐵、鎳、始、訊及絡 組成之群之金屬，Υ為選自由磷、硼及碳組成之群之元 素而Ζ為選自由鋁、矽、錫、鍺、銦、銻及鈹組成之群 之元素，「a」之範圍為約60至90原子百分比，「b」之範 圍為約10至30原子百分比而「c」之範圍為約〇·1至15原 子百分比。其亦揭示具化學式或T!Xj之金屬破璃線，此 處T為至少一種過渡金屬而X為選自由磷、、碳、銘、 矽、錫、鍺、銦、鈹及銻之群之元素，ΓΙ」之範圍為約7<) 至87原子百分比而r j」之範圍為13至30原子百分比。這 樣之材料可方便地藉使用技藝界熟知之加工技術由溶融 物在1 X 106t /秒之等級之溫度下快速淬火製備。 這些揭示亦提及許多金屬破璃之不尋常或獨特之磁性 ，這些均在廣泛之專利範園内。然而，特定應用（如電流 /電壓變壓器）要求有線性環及低損失之金屬玻璃。 1271439 (4) 發明說明續頁 場方向上磁性各向異性之形成。當合金在（i)接近居禮溫 度或最高至低於其50 °C及（ii)高到足以讓原子擴散或其組 成重排時磁場特別有效。 磁場以橫向施加，這定義為垂直操作時磁激之方向。 當磁性工具為捲繞環形時，金屬玻璃之連續帶自身捲繞 。對這樣之環，橫向為平行環形軸之方向。橫向磁場傳 統上藉將該環同軸地置於永久磁鐵或電磁鐵之磁極間或 / 將該環同軸地置於由適當電流提供能量之筒形線圈内提 本發明金屬玻璃較佳熱處理之溫度（T)及維持時間（t) 視合金之組成而定。T典型上為約300。-450 °C而t為1-10 小時® 較佳方法包括在橫向磁場存在下及視需要在具第一分 磁場施加在橫向而第二分磁場施加在縱向之混合磁場存 在下執行熱處理。當在橫向磁場存在下執行熱處理時， 磁場強度在 50-2,000 0e(4,000- 160,000 A/m)之範圍内。 產生材料之特徵為線性BH環及低芯心損失。以這樣之退 火材料製造之磁性芯心特別適合如測量交流電場強度之 電流/電壓變壓器之應用。固定導磁率或線性BH環讓如 電流/電壓變壓器之裝置在寬範圍施加磁場下提供線性之 輸出。— 下面之實例用於提供對本發明更完整之了解。陳述用 以描述本發明之原理及實施之特定技術、條件、材料、 比例並列出之數據為例示用且不應構成本發明範圍之限 (5) 1271439 發明說明續頁 制0 實例 實例 鐵基非晶形合金 厚度約1 5至3〇 Um、士议nn 本發明非晶形鐵基合金藉快速固 化技術鑄造。礤性環士燠縫人a 衣由捲繞〇金帶或切開之帶製造並在 烘箱中熱處理。橋态^ ，、巧磁场由將該環同軸地置於永久磁鐵 之磁極間或精將該斑苗、& ^… 衣置於輸运必要電流之筒形線圈内產 生。 鐵基非晶形合金帶以環形捲繞形成磁性環。之後環在 、衣軸、向的礤場之烘箱中熱處理。之後該環使用 可購得之磁滯圖檢驗破 赞以確疋、.泉性B Η關係，此處B及Η分 別代表磁感應及蹲場 顧〗卜& %。圖1比較根據本發明製備之非晶形 F e基芯心及先前技蓺ρ 1北曰 # C〇基非日3形合金環之b -η特徵。本 發明芯心在4 0 0 °C具|吉涛少圓m 、翁直衣I圓周方向施加之16,0 00 A/m 磁場下熱處理10小時。本發明芯心之B_H行為在施加磁 場範圍為約-15 Oe (_i，2〇〇 A/m)及+15 Oe (+1，200 A/m) 且伴隨之磁感應或通量改變為-12 kG (-1.2 T)至+12 kG (+1.2 T)之内為線性的。另一方面先前技藝co基芯心之 線性B-H區域限制在通量改變為約·7 kG (_0·7 T)至+7 kG ( + 0.7 T)，這限制了磁反應能力。線性B-H特徵指線性導 磁率，這以B / Η定義。圖2顯示本發明非晶形F e基合金之 導磁率最高至約丨000 kHz或1 MHz之頻率為固定的°這 指本發明Fe基非晶形合金之磁反應在最高約1000 kHz之 -10 - 發明說明績頁 1271439 (6) 整個頻率範圍中維持特疋 订粁為在小於約3 0e(240 A/m)之外磁 如圖3所示線杪為 tr美非晶形合金芯心中發現。在這情 場下在部分結晶之Fe基#曰 w A可逢擇的。此芯心提供感應低電 況中熱處理時之磁坊為 流水準之電流變壓器° Fe基非晶形合金dc導 Fe-B-Si基環形樣品公心 mm及高=4.8 mm^Fe-B- 磁率之典型實例列在表I，此處 之大小為 OD=13_0 mm、ID = 9.5 Si-C基芯心之大小為OD==25.5 mm ID=16 · 及高 fe-B-Si及 Fe-B-Si-C基合金
之飽和感應分別為i·56及^60 T
表I ——-1 ------- 退火時間 (小時） --—------ 橫向磁場 (A/m) DC導極率 合金. 退火溫度(°c) __---- METGLAS®2605SA1 (Fe-B-Si> 410 6.5 0 460 METGLAS®2605SA1 (Fe-B-Si) 420 8 20,000 910 METGLAS ⑧2605SC (Fe-B-Si-C) 400 5 20,000 3,650 METGLAS®2605SC (F€-B-Si-C) 390 8 20,000 5,300 實例2 後品製備 非晶形合金根據悚（Chen)等人在美國專利3 856 5 1 3教 導之技術自熔融物以約106 K/s之冷卻逯率快速淬火。典 型上為10至30 μιη厚及約1 cm至約20 〇取寬之產生合金帶 以X線繞射（使用Cu-Κα輻射）及示差掃福熱分析儀測定無 -11 - · 1271439 (7) 發明說明續頁 明顯結晶。帶狀之非晶形合金強、亮、硬且具延性。 如此產生之條切成較窄之條。捲繞成不同大小之環形 。環在有或沒有磁場下溫度在300至450 °C間之烘箱中熱 處理。當在熱處理時施加磁場時，其方向沿著環圓周方 向之橫向。典型磁場強度為50-2,000 0e(4,000- 160,000 A/m) 〇 磁性測量 根據實例2製備之磁性環在傳統BH磁滯圖中試驗以得 到B-H特徵。以B/H定義之導磁率在環上以頻率之函數測 量，其產生圖2所示之曲線。 如此已詳細敘述本發明，應了解這樣之細節不需受限 制但熟諳此藝者可建議之種種改變及修正皆在後面所附 之申請專利範圍定義之本發明範圍内。 圖式簡單說明 本發明已參照上面之詳細敘述及附圖更完整地了解且 其進一步之優點變得明顯，其中全部幾張圖中相似之編 號指相似之元件且其中： 圖1為描繪本發明非晶形Fe-B-Si基合金及先前技藝Co 基合金之B-H特徵之圖； 圖2為描繪圖1非晶形F e基合金磁通率以頻率函數之圖 形；—— 圖3為描繪本發明非晶形Fe基合金在沒有磁場下420 °C 熱處理6.5小時後之B-H特徵之圖。 -12：

Claims (1)

1271 43#ι〇253ι號專利申請案 中文申請專利範圍替換本(95年7月） 拾、申請專利範圍 1. 一種非晶形鐵基合金，其組成基本上由約70-87原子百 分比之鐵、最高約2 0原子百分比之鐵視情況以姑取代 且最高約3原子百分比之鐵視情況以鎳、獻、飢、欽或 鉬取代、其餘存在之元素選自包括硼、矽及碳組成之 群所組成，該合金經熱處理以在施加磁場範圍為-1 5 Ο e 至+15 Oe内感應線性BH特性及低磁損。 2. 如申請專利範圍第1項之熱處理非晶形鐵基合金，其具 有超過約1 0 kG或1特士拉之飽和磁感應。 3. 如申請專利範圍第1項之非晶形鐵基合金，該合金為具 預定易磁化方向之條狀形式且已在磁場下經熱處理， 該磁場大小之範圍為約50 Oe (4,000 A/m)至約2,000 Oe ( 1 60,000 A/m)，且該磁場以垂直該條狀物之預定易 磁化方向施加。 4. 如申請專利範圍第1項之非晶形鐵基合金，該合金在接 近合金居禮溫度之溫度下經熱處理。 5. 如申請專利範圍第4項之非晶形鐵基合金，該合金在高 至足以讓原子擴散或其組成重排之溫度下經熱處理。 6. —種非晶形鐵基合金，其組成基本上由約70-87原子百 分比之鐵、最高約2 0原子百分比之鐵視情況以鈷取代 且最高約3原子百分比之鐵視情況以鎳、鐘、訊、鈥或 鉬取代、其餘存在之元素選自包括硼、矽及碳組成之群 所組成，該合金在磁場存在下熱處理以在施加磁場範圍 為-15 Oe至+15 Oe内感應線性BH特性及低磁損。 申譜專初挺圍:續頁,i ,·. _ Ί >! ·、、，.义。…w ί 1271439 7. 如申請專利範圍第6項之熱處理非晶形鐵基合金，其具 有超過約1 0 kG或1特士拉之飽和磁感應。 8. 如申請專利範圍第6項之非晶形鐵基合金，該合金為具 預定易磁化方向之條狀形式且該磁場大小之範圍為約 50 Oe (4,000 A/m)至約 2,000 Oe (160,000 A/m)，且以 垂直該條狀物之預定易磁化方向施加。 9. 如申請專利範圍第6項之非晶形鐵基合金，該合金在接 近合金居禮溫度之溫度下經熱處理。 10. 如申請專利範圍第9項之非晶形鐵基合金，該合金在高 至足以讓原子擴散或其組成重排之溫度下經熱處理。 -2-
TW092102531A 2002-02-08 2003-02-07 Fe-based amorphous metal alloy having a linear BH loop TWI271439B (en)

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US20030150528A1 (en) 2003-08-14
KR101057463B1 (ko) 2011-08-17
HK1081238A1 (en) 2006-05-12
CN1646719A (zh) 2005-07-27
AU2003217302A8 (en) 2003-09-02
AU2003217302A1 (en) 2003-09-02
JP2011102438A (ja) 2011-05-26
CN100449030C (zh) 2009-01-07
KR20040081770A (ko) 2004-09-22
WO2003066925A3 (en) 2004-04-29
JP2005520931A (ja) 2005-07-14
TW200400274A (en) 2004-01-01
US6749695B2 (en) 2004-06-15
EP1472384A2 (en) 2004-11-03

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