Study on Helium Behavior in Metals by Nuclear Reaction Method and Nuclear Magnetic Resonance

核反应法和核磁共振研究氦在金属中的行为

• 批准号: 01580220
• 负责人: NAKAJIMA Hideo
• 金额: $ 1.34万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01580220/
• 关键词: Helium; Implantation; Nuclear Magnetic Resonance; Nuclear Reaction Method; Diffusion; Vanadium; 酸素; ヘリウムキャビティ

The present research was undertaken to elucidate the mechanism of diffusion and precipitation of helium in metals by nuclear reaction method, nuclear magnetic resonance and transmission electron microscopy.Helium-3 ions were implanted into tantalum foils by the Extrion Implantor. The condition was follows : ion energy 90keV, 5.8x10^<16>He/cm^2, and implantation at room temperature.The results by nuclear reaction method and nuclear magnetic resonance show that both methods are good tools to research the helium behaviour, and implanted helium already diffuses through the sample foil significantly.For the research by TEM, helium was into vanadium alloys implanted by boron-10 method and tritium trick method. Then, the samples were irradiated by JMTR, JOYO and FFTF. After the irradiation the samples were observed by TEM ; irradiated morphology and helium cavity density were measured. These helium behaviour was discussed in terms of the atomic size effect of alloying elements.

进行了本研究，以通过核反应法，核磁共振和透射电子显微镜阐明金属中氦的扩散和沉淀的机制。Helium-3离子通过外卖植入物植入坦塔尔箔中。条件如下：离子能量90KeV，5.8x10^<16> He/cm^2，在室温下植入。通过核反应方法​​和核磁共振的结果表明，这两种方法都是研究氦行为的好工具，植入氦气已经显着通过样品箔扩散。对于TEM的研究，氦是通过Boron-10方法和Tritium Trick方法植入的钒合金的。然后，JMTR，Joyo和FFTF照射了样品。辐照后，通过TEM观察样品；测量了辐照的形态和氦腔密度。根据合金元素的原子大小效应讨论了这些氦行为。

项目成果

H. Matsui and H. Nakajima: "Swelling of a V-5Fe Alloy After Irradiation in JOYO" the Science Reports of the Research Institutes, Tohoku University. (1991)

H. Matsui 和 H. Nakajima：“JOYO 中 V-5Fe 合金辐照后的膨胀”，东北大学研究所的科学报告。

H.Matsui and H.Nakajima: "Swelling of a Vー5Fe Alloy after Irradiation in JOYO" the Science Reports of the Research Institutes,Tohoku University. A36. (1991)

H.Matsui 和 H.Nakajima：“JOYO 中辐照后 V-5Fe 合金的膨胀”，东北大学研究所的科学报告（1991）。

H.Matsui and H.Nakajima: "Swelling of a Vー5Fe Alloy after Irradiation in JOYO," the Science Reports of the Research Institutes,Tohoku University. A36. (1991)

H.Matsui 和 H.Nakajima：“JOYO 中辐照后 V-5Fe 合金的膨胀”，东北大学研究所的科学报告 (1991)。