Gas swelling and related phenomena in beryllium implanted with deuterium ions
Gas swelling and related phenomena in beryllium implanted with deuterium ions
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DOI：
10.1016/0022-3115(96)80003-1
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发表时间：
1996-02
影响因子：
3.1
通讯作者：
V. N. Chernikov;V. Alimov;A. Markin;A. Zakharov
中科院分区：
文献类型：
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作者：
V. N. Chernikov;V. Alimov;A. Markin;A. Zakharov
用透射电镜研究了3和10 keV的D离子注入TIP-30 Be的显微结构，注量Φ为3 × 10 ~（20）~ 8 × 10 ~（21）D/m ~ 2，温度Tirr= 300、500和700 K。分别用西姆斯和RGA方法研究了分离的D原子和D2分子的深度分布。D离子辐照，伴随着起泡，引起的破坏主要依赖于Tirr。在300 K下的辐照导致形成1 nm大小的微小D2气泡（让人想起Be中的He气泡）。在Tirr≥ 500 K时，沿着小的小面泡，大的扁腔的发展积累了大部分注入的氘，并提供了比300 K时高得多的气体膨胀。D（He）离子注入导致cph-BeO氧化物微晶层的生长增强，其微结构不同于电抛光Be表面上的微结构。在分析实验数据的基础上，讨论了氘的再发射、热脱附和缺陷俘获。
An extensive TEM study of the microstructure of TIP-30 Be implanted with 3 and 10 keV D ions to fluences, Φ in the range from 3 × 1020 to 8 × 1021D/m2at temperatures, Tirr= 300, 500 and 700 K has been carried out. Depth distributions of separate D atoms and D2molecules have been investigated by means of SIMS and RGA methods, correspondingly. D ion irradiation, accompanied by blistering, gives rise to destructions dependent mainly on Tirr. Irradiation at 300 K leads to the formation of tiny D2bubbles of 1 run in size (reminiscent of He bubbles in Be). At Tirr≥ 500 K, along with small facetted bubbles, the development of larger oblate cavities occurs accumulating most of injected deuterium and providing for a much higher gas swelling compared to that at 300 K. D (He) ion implantation leads to the enhanced growth of microcrystalline layers of cph-BeO oxide with a microstructure differing from that on the electropolished Be surface. Based on the analysis of experimental data deuterium reemission, thermal desorption and trapping in defects are discussed.