本文選題：居里溫度　切入點：差示掃描量熱儀　出處：《金屬功能材料》2016年06期 　論文類型：期刊論文

【摘要】：研究了差示掃描量熱法(DSC)、熱膨脹法(DIL)測試鐵基非晶薄帶居里轉變溫度的方法,并對測試結果進行了對比分析,研究表明,采用合適的試驗條件,兩種檢測方法都可以獲得明顯的居里轉變信號。其中居里轉變過程在DSC曲線上出現(xiàn)抖動現(xiàn)象,在DIL曲線上出現(xiàn)了反常膨脹即收縮,對比兩條測量曲線發(fā)現(xiàn)DIL曲線收縮段的終止點對應DSC法測量的居里轉變溫度。研究還表明,DSC法測試居里溫度需要較高的升溫速度,升溫速度大于10K/min才可以觀察到居里轉變信號,而熱膨脹法則適合采用較小的升溫速度,在合適的溫度范圍內,改變升溫速度對DSC法和DIL法檢測結果影響都不大。
[Abstract]:The method of measuring Curie transition temperature of Fe-base amorphous thin strip by differential scanning calorimetry (DSC) and thermal expansion method (DIL) was studied. The results were compared and analyzed. The results showed that the suitable test conditions were adopted. Both methods can obtain obvious Curie transition signal, in which the Curie transition appears jitter on the DSC curve and abnormal expansion or contraction on the DIL curve. By comparing the two measuring curves, we found that the closing point of the contraction of DIL curve corresponds to the Curie transition temperature measured by DSC method. The results also show that the Curie transition signal can be observed only when the Curie temperature is measured by DSC method, and the heating rate is more than 10K / min. However, the thermal expansion rule is suitable for the smaller heating rate. In the appropriate temperature range, the change of the heating rate has little effect on the results of DSC and DIL methods.
【作者單位】： 中國石油天然氣股份有限公司吉林石化分公司研究院;安泰科技股份有限公司;
【分類號】：TG139.8

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本文編號：1633961