本研究設計新的腔體，使用準行波式腔體用SiC輔助微波來加熱碳纖維的前驅物-聚丙烯腈(PAN)，藉此來提高氧化PAN絲的產量。1.這個新型腔體，製程時間是先前1/10。對於氧化PAN絲，傳統程序需要120分鐘才能將1cm的PAN絲氧化，但這種新腔能能用13分鐘便能將1cm的PAN氧化完全2.和第一代腔體相比產量更多，且設計上更有彈性能做成並排來處理氧化。在這項實驗中，加熱過程分為兩個步驟，以避免在急劇的結構轉變過程中纖維斷裂。
第一步，使用2.45GHz微波源，功率為148W，盡可能加熱光纖但避免斷裂，加熱過程為8分鐘。第二步，我們使用幾種功率，加熱時間為5分鐘。 最後，將我們做的纖維與廠商氧化絲進行比較，測量纖維的密度，然後通過高頻結構模擬軟體(HFSS）確定介電常數和介電損耗。通過X光粉末繞射儀器(XRD)來驗證結構有轉變有氧化成功，用差示掃描量熱法(DSC)看結構穩定化，用掃描電子顯微鏡(SEM)看表面結構，拉曼光譜發現分析皮芯結構是不是均勻的。

This study proposed a new cavity that can enhance the yield of oxidation fiber with quasi-traveling microwave-heating. With this new cavity, the yield is 10 times more than previous cavity.
For oxidation process, the conventional procedure requires 120 mins to transfer 1cm PAN into oxidation, but this new cavity will enhance the yield 13 mins for 1cm PAN. In this study, the heating process is divided into two steps to avoid fiber breakage during the sharp structural transition.
In the first step, the power of 2.45GHz source is 148W to heat the fiber as possible but avoiding from breakage, and the heating process is 8 mins. In the second, we experiment several powers, and heating times is 5 mins. Finally, the fiber of density was measured, and then permittivity and loss tangent were determined by HFSS (High Frequency Structure Simulator). We will compare our fibers with commercial ones by X-Ray Diffraction (XRD), Differential Scanning Calorimetry(DSC), Scanning Electron Microscopy (SEM) and Raman Spectroscopy(RS).

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