本論文的第一部份研究純鐵鋁混粉燒結升溫過程相變化，結果證明在Fe-28 at.%Al純鐵鋁混粉升溫時，中間相Fe2Al5出現的溫度為550℃，並於850℃完全消失，此中間相顯微結構疏鬆多孔，與純粉混合燒結時發生之膨脹有直接關係，且伴隨此相的生成，於極短時間內釋放大量的反應熱。依本研究結果，建議純鐵鋁粉末燒結反應機制如下：
3Fe＋Al →1/5 Fe2Al5 ＋13/5Fe ．．．．．．□ T≧550℃
13/5Fe＋1/5Fe2Al5 → Fe3Al ．．．．．．．□ 850℃≧T≧650℃
由於Fe2Al5相具有鬆脆的性質，熔點低(1169℃)，可散佈於Fe-Al試片中，具有第二相粒子的作用，幫助減少Fe-Al試片承受冷滾壓中產生的裂縫延伸，對於提升Fe3Al成品機械性質很有幫助。
本論文第二個部份以管狀真空爐和滾壓機等簡單設備，無壓粉末冶金方法製作大尺寸（145 mm×20 mm×3mm）的Fe3Al成品。實驗結果顯示Fe3Al成品具有良好的延展性(~4.8%)、緻密性(96%)及不錯的強度(~500MPa)。添加α-Al2O3粉製作Fe3Al基複合材的實驗結果顯示增加α-Al2O3粉含量降低Fe3Al基複合材的晶粒尺寸，推知α-Al2O3粉阻礙晶粒成長，且降低試片中的孔隙率，提高試片密度。觀察Fe3Al基複合材拉伸斷裂面可見α-Al2O3粉與Fe3Al基地材間具有相當好接合力，但並未有擴散反應產生。實驗中採用熱機處理（TMT）可以大幅提高Fe3Al基複合材的延展性，且本研究之無壓燒結的Fe3Al基複合材試片於高溫延展性較已有文獻為優良。

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