Atomic origins of solid helium bubbles in tungsten

被引：1

作者：

Xia Min ^{[1
,3
]}

Guo Hong-Yan ^{[1
,3
]}

Dai Yong ^{[2
]}

Yan Qing-Zhi ^{[1
]}

Guo Li-Ping ^{[4
]}

Li Tie-Cheng ^{[4
]}

Qiao Yi ^{[1
]}

Ge Chang-Chun ^{[1
,3
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Nucl Mat, Beijing 100083, Peoples R China

[2] Paul Scherrer Inst, Lab Nucl Mat, CH-5323 Villigen, Switzerland

[3] Southwest Jiaotong Univ, Inst Powder Met & Adv Ceram, Chengdu 610031, Peoples R China

[4] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China

来源：

CHINESE PHYSICS B | 2014年 / 23卷 / 12期

基金：

中国国家自然科学基金;

关键词：

solid helium bubble; atomic origins; tungsten; TEM; HAADF-STEM; EQUATION-OF-STATE; X-RAY-DIFFRACTION; PHASE-DIAGRAM; HE-4;

D O I：

10.1088/1674-1056/23/12/127806

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Solid helium bubbles were directly observed in the helium ion implanted tungsten (W), by different transmission electron microscopy (TEM) techniques at room temperature. The diameters of these solid helium bubbles range from 1 nm to 8 nm in diameter with the mean bubble size about 3 nm. The selected area electron diffraction (SAED) and fast Fourier transform (FFT) images revealed that solid helium bubbles possess body-centered cubic (bcc) structure with a lattice constant of 0.447 nm. High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) images further confirmed the existence of helium bubble in tungsten. The present findings provide an atomic level view of the microstructure evolution of helium in the materials, and revealed the existence of solid helium bubbles in materials.

引用

页数：4

共 50 条

[31] Molecular dynamics simulations on the effect of sub-surface helium bubbles on the sputtering yield of tungsten
Sefta, F.
Juslin, N.
Hammond, K. D.
Wirth, B. D.
JOURNAL OF NUCLEAR MATERIALS, 2013, 438 : S493 - S496
[32] Molecular dynamics simulation of the effect of sub-surface helium bubbles on hydrogen retention in tungsten
Juslin, N.
Wirth, B. D.
JOURNAL OF NUCLEAR MATERIALS, 2013, 438 : S1221 - S1223
[33] Atomistic study on the dynamic response of helium bubbles to high-energy displacement cascades in tungsten
Cui, Jiechao
Li, Min
Fu, Baoqin
Hou, Qing
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2022, 510 : 29 - 38
[34] Solid-phase epitaxial regrowth of amorphous silicon containing helium bubbles
Beaufort, M. F.
Pizzagalli, L.
Gandy, A. S.
Oliviero, E.
Eyidi, D.
Donnelly, S. E.
JOURNAL OF APPLIED PHYSICS, 2008, 104 (09)
[35] Helium bubble growth under strain fields in tungsten investigated by atomic method
Cui, Minghuan
Gao, Ning
Wang, Dong
Gao, Xing
Wang, Zhiguang
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2019, 460 : 60 - 66
[36] Atomic bubbles in impurity-stabilized solid 4He
Lebedev, V.
Moroshkin, P.
Weis, A.
LOW TEMPERATURE PHYSICS, 2009, 35 (04) : 299 - 302
[37] PRESSURE SHIFT OF ATOMIC RESONANCE LINES IN LIQUID AND SOLID HELIUM
KANORSKY, S
WEIS, A
ARNDT, M
DZIEWIOR, R
HANSCH, TW
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1995, 98 (03): : 371 - 376
[38] Exploring the impact of pre-existing helium bubbles on nanoindentation in tungsten through molecular dynamics simulation
Lin, Pan-dong
Nie, Jun-feng
Cui, Shu-gang
Cui, Wen-dong
He, Lei
Xiao, Gui-yong
Lu, Yu-peng
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 31 : 2708 - 2722
[39] Effect of hydrogen pre-implantation on formation and growth of bubbles in tungsten under helium ion irradiation
Luo, Fengfeng
Wang, Jiawei
Zhang, Linwei
Guo, Liping
Zhang, Weiping
Shen, Zhenyu
Wang, Chunlan
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2019, 450 : 224 - 228
[40] HELIUM GAS BUBBLES IN VANADIUM
HEERSCHAP, M
SCHULLER, E
LANGEVIN, B
TRAPANI, A
JOURNAL OF NUCLEAR MATERIALS, 1973, 46 (02) : 207 - 209

← 1 2 3 4 5 →