【摘 要】
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The behavior of irradiation to hydrogen bubbles in materials would be an interesting question not only for fusion reactor materials,but also for common condensed matter physics.For example,sonolumines
【机 构】
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School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100
【出 处】
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第13届中日双边先进能源系统和聚变裂变工程材料会议(CIS-13)
论文部分内容阅读
The behavior of irradiation to hydrogen bubbles in materials would be an interesting question not only for fusion reactor materials,but also for common condensed matter physics.For example,sonoluminescence has been attracted widespread attention for a long time even its mechanism is still unknown.The experiment of sonoluminescence could be carried out using transparent liquid and then the emitted light is easy to be observed.It is reasonable to think that same phenomena might also occur in solid materials,but non-transparence of solid materials prevent it to be noticed.In this work,hydrogen or deuterium ions were introduced into pure aluminum to form gas bubbles by ion accelerator,and the in-situ observation was carried out under transmission electron microscope to investigate the change of bubbles in detail.During electron irradiation some rings appeared in the electron diffraction pattern during electron irradiation,and the bubbles would joined each other to form larger ones.It is suggested the heat emission occurred when the bubbles were expose to electron irradiation,and the aluminum of single crystal melted at first by the heat,and then solidified in form of polycrystalline.Such diffraction rings could form both in hydrogen-implanted case and deuterium-implanted case,meaning no isotopic effect in the experiment.
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