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研究生:初文明
研究生(外文):Wen-Ming Chu
論文名稱:以機械合金/固態反應法製作高性能鐵蕊
論文名稱(外文):A study to produce high performance iron cores by mechanical/solid-state reaction method
指導教授:林正雄林正雄引用關係
指導教授(外文):Cheng-Hsiung Lin
學位類別:碩士
校院名稱:吳鳳技術學院
系所名稱:光機電暨材料研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2007
畢業學年度:95
語文別:中文
論文頁數:57
中文關鍵詞:機械合金/固態反應法鐵矽鋁合金鐵蕊鐵鎳鉬合金鐡蕊
外文關鍵詞:mechanical alloyingFe-Si-Al alloy coreNi-Fe-Mo alloy core
相關次數:
  • 被引用被引用:2
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  • 下載下載:28
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摘要
鐵矽鋁及鐵鎳鉬合金具有低磁伸縮係數、低磁異方性常數及比純金屬高的電阻係數,非常適合於製作高性能鐡蕊。此鐵蕊通常以合金粉末為原料,由粉末冶金法製成。由於合金粉末通常採用噴霧法或化學還原法製作,需要龐大的設備及先進的技術,一般鐵蕊製造工廠不易自行製造,鐵矽鋁及鐵鎳鉬合金粉末屬特殊規格,國外也不容易購得,此限制國內金屬質鐵蕊工業的發展。為解決此一問題,擬以機械合金/固態反應法,以純金屬粉末為原料,製作此鐵蕊,其製作過程把純金屬粉末經混合及研磨數十多小時,製成半機械合金粉末,粉末表面經絕緣處理後,再經氫氣下熱處理,才容易模具成型,製成鐵蕊。在燒結過程中,未完全反應的粉末繼續反應成合金。在120Hz下測得FeSiAl及NiFeMo之導磁率為14432及18360。
ABSTRACT
Sendust and superpermalloy with low magnetostriction, low anisotropic constant and high resistivity compared with pure metal are appropriate for high quality magnetic cores. These cores are made of the corresponding metal powders which are prepared by spraying or chemical reduction methods. Because there is no alloy powder manufacturing company in Taiwan, in this study, these powders are prepared by mechanical alloying/solid state reaction method. In the grinding process, the crystallize phase changes of the mixed metal powders are measured by XRD. Fe-Si-Al alloy core and Ni-Fe-Mo alloy core are hard pressed out from the as-prepared mechanical alloying powders which are annealed at 700oC. The permeability of sendust and supermalloy are 14432 and 18360 at 120 Hz respectively.
目錄
中文摘要 i
英文摘要 ii
目錄 iii
圖目錄 vi
第一章 前言 1
第二章 理論基礎與文獻回顧 4
2.1磁特性 4
2.1.1 磁矩 4
2.1.2磁性材料分類 6
2.1.3磁滯迴路 6
2.1.6軟磁材料 9
2.1.6.1 鐵鋁矽合金(sendust) 10
2.1.6.2 超合金(superpermalloy) 10
2.2 介金屬 11
2.3 介金屬基複合材料的製程 12
2.3.1 自發反應合成 12
2.3.2 粉末冶金 13
2.3.3 機械合金法 13
2.4 球磨時間對顆粒尺寸的影響 16
2.5 球磨參數對機械合金的影響 18
2.5.1 球磨能量 18
2.5.2 球磨污染 19
2.5.3 球磨溫度 20
2.6 機械合金的熱力學分析 20
第三章 實驗方法 23
3.1實驗流程 23
3.2 測量方法 24
3.2.1 掃描式電子顯微鏡 24
3.2.2 X光繞射儀操作步驟 27
3.2.3 LCR分析儀 29
第四章 結果與討論 31
4.1 鐵鋁矽合金 31
4.1.1 電子顯微鏡影像觀察 31
4.1.2 X光繞射分析 38
4.1.3 LCR分析儀之測量 42
4.2 超合金 42
4.2.1 電子顯微鏡影像觀察 42
4.2.2 X光繞射分析 49
4.2.3 LCR分析儀之測量 52
第五章 結論 53
參考資料 54
參考資料
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