The comparison of bulk and in-situ irradiation damage on cubic-Lu2TiO5 and orthorhombic-La2TiO5

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:498

Article

He, Huanhuan¹  Xie, Qiurong¹  Lin, Zhiwei¹  Jiang, Shengming¹  Hu, Xiaotian¹  Tang, Ming^2,3  Zhang, Jian¹ 

[1] Xiamen Univ, Coll Energy, Xiamen 361005, Fujian, Peoples R China

[2] Clemson Univ, Dept Mat Sci & Engn, Clemson, SC 29631 USA

[3] Clemson Univ, Ctr Nucl Environm Engn Sci & Radioact Waste Manag, Clemson, SC 29631 USA

关键词: In-situ ion irradiation;    Ex-situ ion irradiation;    Amorphization;   

DOI  :  10.1016/j.nimb.2021.04.017

来源: Elsevier

【 摘 要 】

Polycrystalline cubic-Lu2TiO5 and orthorhombic-Lu2TiO5 compounds were prepared by traditional ceramic processing. In-situ and ex-situ ion beam irradiations were performed on these samples at room temperature. Bulk samples were irradiated with 800 keV Kr2+ ions and characterised ex-situ, whilst powder samples were in-situ irradiated with 1 MeV Kr2+ ions. For Lu2TiO5, a completely amorphization was observed at the fluences of 2 x 10(14) ions/cm(2) (similar to 0.37 dpa) in the bulk sample and 5 x 10(14) ions/cm(2) (similar to 0.99 dpa) in the TEM sample. For Lu2TiO5, complete amorphization was observed at the fluences of 5 x 10(13) ions/cm(2) (similar to 0.08 dpa) in the bulk sample and 1.25 x 10(14) ions/cm(2) (similar to 0.21 dpa) in the TEM sample. It seems that a higher irradiation fluence to amorphization was needed for in-situ TEM samples than that for bulk samples.

【 授权许可】

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