In situ TEM observations of irradiation-induced phase change in tungsten
In situ TEM observations of irradiation-induced phase change in tungsten
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DOI：
10.1007/s10853-009-3302-5
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发表时间：
2009-02
影响因子：
4.5
通讯作者：
C. L. Chen;T. Nagase;H. Mori
中科院分区：
文献类型：
--
作者：
C. L. Chen;T. Nagase;H. Mori
采用原位高分辨电子显微镜研究了钨的电子辐照相变。用NaOH水溶液化学抛光法制备的样品在773 K 200kev的电子辐照下发生了α - β相变。结果表明，溶液中沉积在钨样品上的钠原子，而不是氧原子，可能在诱导相变中起重要的催化作用。
Electron irradiation-induced phase change in tungsten was examined by in situ high resolution electron microscopy. In samples prepared by a chemical polishing technique using a NaOH aqueous solution, an α to β phase change was induced under 200 keV electron irradiation at 773 K. It is suggested that sodium atoms deposited on the tungsten sample from the solution, rather than oxygen atoms, may play an essential catalytic role in inducing the phase change.