3相，反應(yīng)動力學(xué)符合形核—生長機制。形成的UAl3相為疏松的層狀結(jié)構(gòu)，且相應(yīng)的衍射峰強度隨溫度的升高而逐漸降低，直至消失，文中對該現(xiàn)象的原因進行了分析和討論。"/>

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Al/U固相界面反應(yīng)的原位高溫X射線衍射研究
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中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院材料研究所,中國工程物理研究院

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Interface reaction between aluminium and uranium at high temperature using in-situ X-ray diffraction
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Institute of Materials,China Academy of Engineering Physics,Institute of Materials,China Academy of Engineering Physics,Institute of Materials,China Academy of Engineering Physics,Institute of Materials,China Academy of Engineering Physics,Institute of Materials,China Academy of Engineering Physics,China Academy of Engineering Physics

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    摘要:

    采用磁控濺射沉積技術(shù)在貧鈾上鍍鋁膜，利用X射線衍射原位研究了鋁鍍層與貧鈾基體的界面反應(yīng)，分析了界面反應(yīng)產(chǎn)物隨溫度和時間的變化規(guī)律。實驗結(jié)果顯示，鍍膜過程Al/U界面沒有化合物形成，而在較高溫度下（≥335 ℃）兩相界面會發(fā)生反應(yīng)并形成金屬間化合物UAl3相，反應(yīng)動力學(xué)符合形核—生長機制。形成的UAl3相為疏松的層狀結(jié)構(gòu)，且相應(yīng)的衍射峰強度隨溫度的升高而逐漸降低，直至消失，文中對該現(xiàn)象的原因進行了分析和討論。

    Abstract:

    Aluminum film was prepared using magnetron sputtering deposition process on depleted uranium surface. The interface reaction between aluminium and uranium was investigated using in-situ X-ray diffraction at high temperature. The reaction product and the changes with temperature and time were researched and discussed. The experimental results indicate that there are absent any of intermetallic compounds in the original sample, and the interface reaction occurs and the intermetallic compound UAl3 forms when the temperature is higher than 335 °C. The dynamics of surface reaction is in accord with nucleation-growth mechanism. It is interesting that the diffraction peak’s intensity of UAl3 decreases with the increasing of temperature and disappear at 600°C, which is analyzed and discussed in this paper.

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張延志,謝衛(wèi)華,管衛(wèi)軍,陳林,王勤國,汪小琳. Al/U固相界面反應(yīng)的原位高溫X射線衍射研究[J].稀有金屬材料與工程,2017,46(9):2465~2469.[Zhang Yanzhi, Xie Weihua, Guan Weijun, Chen Lin, Wang Qinguo, Wang Xiaolin. Interface reaction between aluminium and uranium at high temperature using in-situ X-ray diffraction[J]. Rare Metal Materials and Engineering,2017,46(9):2465~2469.]
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  • 收稿日期:2016-06-23
  • 最后修改日期:2017-09-29
  • 錄用日期:2016-12-06
  • 在線發(fā)布日期: 2017-11-29
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