Helium partitioning to the core-shelled Ta nanoclusters in nanocrystalline Cu-Ta alloy
Helium partitioning to the core-shelled Ta nanoclusters in nanocrystalline Cu-Ta alloy
复制标题
纳米晶 Cu-Ta 合金中氦对核壳 Ta 纳米团簇的分配
DOI：
10.1016/j.scriptamat.2021.114344
复制
发表时间：
2022
影响因子：
6
通讯作者：
Solanki, K.
中科院分区：
文献类型：
--
作者：
Srinivasan, S.;Hornbuckle, B.C.;Darling, K.A.;Kim, H.;Wang, Y.Q.;Solanki, K.
在这项工作中，纳米晶（NC）Cu-10at.%在不同温度下用氦气辐照Ta合金，以评估Ta纳米团簇在捕获氦气和抑制膨胀方面的稳定性和有效性。先进的室温辐照试样的微观结构表征表明，在峰值损伤深度主要在核心和沿着界面的Ta纳米团簇与Cu基体的小He气泡（约1-2 nm）的存在下。沿着晶界发现很少气泡，更小的气泡均匀分布在铜晶格内。高温照射显示出103 -5 nm的气泡，与其他位置相比，这些气泡主要与纳米团簇相关，没有观察到气泡的刻面。原子探针分析证实了氦分配到Ta纳米团簇，表明这些He原子的有效捕获。
In this work, a nanocrystalline (NC) Cu-10at.%Ta alloy is irradiated with helium at different temperatures to assess the stability and effectiveness of Ta nanoclusters in trapping helium and suppressing swelling. Advanced microstructural characterization of the room-temperature irradiated specimens indicated the presence of small He-bubbles (∼1-2 nm) at the peak damage depth mainly at the core and along the interface of Ta nanoclusters with Cu matrix. Few bubbles were found along grain boundaries, with much smaller bubbles homogenously distributed within the copper lattice. High-temperature irradiation exhibited bubbles of ∼3-5 nm, which were primarily associated with nanoclusters as compared to other locations, with no observed faceting of the bubbles. Atom probe analysis confirmed helium partitioning to the Ta nanoclusters indicating the effective entrapment of these He atoms.
影响因子：
16.6
作者：
Turnage SA;Rajagopalan M;Darling KA;Garg P;Kale C;Bazehhour BG;Adlakha I;Hornbuckle BC;Williams CL;Peralta P;Solanki KN
通讯作者：
Solanki KN
DOI：
--
发表时间：
1973
期刊：
影响因子：
--
作者：
F. Smidt;J. Sprague
通讯作者：
J. Sprague