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

[1] Atomic origins of solid helium bubbles in tungsten
夏敏
郭洪燕
戴勇
燕青芝
郭立平
李铁成
乔祎
葛昌纯
Chinese Physics B, 2014, 23 (12) : 5 - 8
[2] Spectroscopy of Nonspherical Atomic Bubbles in Solid Helium
Lebedev, V.
Moroshkin, P.
Weis, A.
JOURNAL OF PHYSICAL CHEMISTRY A, 2011, 115 (25): : 7169 - 7179
[3] Segregation and coalescence behavior of helium bubbles in tungsten
Wang, Jinlong
Liu, Daping
Dang, Wenqiang
Guo, Zhichao
Song, Wei
JOURNAL OF NUCLEAR MATERIALS, 2021, 544
[4] The depths of hydrogen and helium bubbles in tungsten: A comparison
Henriksson, K. O. E.
Nordlund, K.
Krasheninnikov, A.
Keinonen, J.
FUSION SCIENCE AND TECHNOLOGY, 2006, 50 (01) : 43 - 57
[5] Thermal evolution of helium bubbles in tungsten by GISAXS and TDS
Teo, Soon Han Bryan
Kirby, Nigel
Hughes, Danielle Rose
Hammoud, Nour
Khan, Aneeqa
Tanaka, Hirohiko
Ohno, Noriyasu
Mummery, Paul
Harmer, Sarah Louise
Corr, Cormac Seamus
JOURNAL OF NUCLEAR MATERIALS, 2025, 604
[6] Simulation study of evolution of helium bubbles in bulk tungsten
Zhan, Jie
Ye, Minyou
Mao, Shifeng
Ren, Jincai
Xu, Xinyuan
FUSION ENGINEERING AND DESIGN, 2019, 146 : 983 - 986
[7] Systematic investigation of the formation behavior of helium bubbles in tungsten
Miyamoto, M.
Mikami, S.
Nagashima, H.
Iijima, N.
Nishijima, D.
Doerner, R. P.
Yoshida, N.
Watanabe, H.
Ueda, Y.
Sagara, A.
JOURNAL OF NUCLEAR MATERIALS, 2015, 463 : 333 - 336
[8] HELIUM BUBBLES IN TUNGSTEN STUDIED BY POSITRON-ANNIHILATION
SUBRAHMANYAM, VS
NAMBISSAN, PMG
SEN, P
SOLID STATE COMMUNICATIONS, 1994, 89 (06) : 523 - 527
[9] Microscopic mechanism of nucleation and growth of helium bubbles in monovacancy in tungsten: helium regulates the charged states of tungsten atoms
Fu, Zhao-Zhong
Wang, Jiong-Rong
Pan, B. C.
NUCLEAR FUSION, 2023, 63 (09)
[10] Evolution behavior of helium bubbles and thermal desorption study in helium-charged tungsten film
Wang, Le
Hao, Ting
Zhao, Bang-Lei
Zhang, Tao
Fang, Qian-Feng
Liu, Chang-Song
Wang, Xian-Ping
Cao, Lei
JOURNAL OF NUCLEAR MATERIALS, 2018, 508 : 107 - 115

← 1 2 3 4 5 →