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研究生： 彭思偉
Sway Peng
論文名稱： 鐵基非晶軟磁塊材與厚帶之研究
Fe-based Glassy bulks and Thick Ribbons
指導教授： 金重勳
Tsung-Shune Chin
口試委員:
學位類別： 碩士
Master
系所名稱： 工學院 - 材料科學工程學系
Materials Science and Engineering
論文出版年： 2008
畢業學年度： 96
語文別： 中文
論文頁數： 75
中文關鍵詞： 鐵基 、非晶 、玻璃 、塊狀 、厚帶
相關次數： 點閱：58  下載：0 
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    • 本研究的目的在於研究非晶鐵基塊狀與厚帶。合金主成份為本實驗室之前所開發的Fe-Y-B系塊狀非晶材料，和Inoue的Fe-Si-B三元系統，進而添加不同元素並研究其結晶行為與軟磁性質。
    在非晶塊狀方面，Fe69Y4B22Nb2Al3和Fe68Y4B22Nb2Al4 是此系列中具有最佳玻璃形成能力(GFA)的成分；其非晶棒材直徑可達4 mm，其飽和磁化量分別為118和114 emu/g，矯頑磁力分別為0.2和0.02 A/m。Fe70Y4B22Nb2Al2其GFA較低，非晶直徑為3 mm，但是軟磁性能佳，飽和磁化量為119 emu/g，矯頑磁力為0.07 A/m。
    在非晶厚帶方面，我們成功製造出至少可形成160 μm和170 μm的非晶厚帶，成份分別為Fe71Y4B22Nb2Al1和Fe70Y4B22Nb2Al2，為一相當具有潛力的非晶厚帶材料。在Fe-Si-B系統方面，Nb的添加，能幫助合金噴出時，帶材的形成，進而改善帶材的品質。當Nb添加量為2%，成為Fe75Si9B14Nb2時，可維持到130 μm的非晶厚帶。
    結合較傳統軟磁材料更為簡單的製程和更優良的軟磁性質，使得本論文中所開發出的新合金，在工業材料的應用上更有吸引力及潛力。

    中文摘要.................................................................................................. I Abstract.................................................................................................... II 誌謝..........................................................................................................III 總目錄..................................................................................................... IV 圖目錄...................................................................................................VIII 表目錄......................................................................................................XI 第一章 前言....................................................................................... 1 1-1 導論........................................................................................... 1 1-2 研究動機................................................................................... 2 1-3 合金設計理念........................................................................... 3 第二章 文獻回顧.............................................................................. 5 2-1 非晶態合金............................................................................... 5 2-1-1非晶態合金的發展......................................................... 5 2-1-2磁性非晶態合金............................................................. 6 2-2 形成非晶合金的要素............................................................... 7 2-2-1非晶形成能力的指標..................................................... 7 2-2-2三大經驗法則................................................................. 9 2-2-3固熔原子的影響.............................................................10 2-2-4共晶點.............................................................................11 2-3 非晶合金之製備方法...............................................................11 2-3-1濺射和蒸發沉積法.........................................................11 2-3-2化學沉積法和電沉積法.................................................12 2-3-3離子植入法.....................................................................12 2-3-4噴濺急冷和噴射沉積法.................................................13 2-3-5熔體急冷法.....................................................................13 2-4非晶態合金的性能....................................................................16 2-4-1非晶態合金的性能特點.................................................16 2-4-2非晶鐵芯的優缺點.........................................................17 2-4-3鐵芯的性能要求.............................................................19 第三章 實驗方法與步驟................................................................22 3-1 實驗流程...................................................................................22 3-1-1合金設計理念.................................................................22 3-1-2合金熔配.........................................................................26 3-1-3銅模鑄造法.....................................................................27 3-1-4熔液旋淬法.....................................................................27 3-2 分析與量測...............................................................................30 3-2-1 X-ray結構分析...............................................................30 3-2-2 DTA示差熱分析............................................................30 3-2-3 TEM微結構分析............................................................31 3-2-4 VSM磁性量測...............................................................32 3-2-5導磁率量測.....................................................................33 第四章 實驗結果與討論................................................................35 4-1不同Al含量對Fe-Y-B-Nb塊狀非晶的各項性質之影響........35 4-1-1 XRD相鑑定....................................................................35 4-1-2 DTA熱性質分析............................................................38 4-1-3 VSM磁性質分析...........................................................47 4-1-4 TEM微結構分析............................................................49 4-2不同Al含量對Fe-Y-B-Nb非晶厚帶GFA之影響.................51 4-2-1 XRD相鑑定....................................................................51 4-2-2導磁率量測.....................................................................55 4-3不同Nb含量對Fe-Si-B非晶厚帶各項性質之影響................57 4-3-1 XRD相鑑定....................................................................59 4-3-2 DTA熱性質分析............................................................63 4-3-3導磁率量測.....................................................................66 4-3-4 TEM微結構分析............................................................67 第五章 結論.......................................................................................69 5-1 鐵基塊狀非晶：Fe-Y-B-Nb-Al合金系統...............................69 5-2 鐵基非晶厚帶：Fe-Y-B-Nb-Al合金系統...............................69 5-3 鐵基非晶厚帶：Fe-Si-B-Nb合金系統....................................70 5-4 建議未來研究方向...................................................................70 參考文獻................................................................................................72

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