Nucleation and growth of carbon onions synthesized by ion implantation at high temperatures

2003 ◽  
Vol 68 (11) ◽  
Author(s):  
E. Thune ◽  
Th. Cabioc’h ◽  
M. Jaouen ◽  
F. Bodart
1998 ◽  
Vol 285 (3-4) ◽  
pp. 216-220 ◽  
Author(s):  
T. Cabioc'h ◽  
A. Kharbach ◽  
A. Le Roy ◽  
J.P. Rivière

2000 ◽  
Vol 128-129 ◽  
pp. 43-50 ◽  
Author(s):  
T Cabioc’h ◽  
M Jaouen ◽  
E Thune ◽  
P Guérin ◽  
C Fayoux ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Naohiro Matsumoto ◽  
Hiroshi Kinoshita ◽  
Junho Choi ◽  
Takahisa Kato

1998 ◽  
Author(s):  
T. Cabioc’h ◽  
M. Jaouen ◽  
M. F. Denanot ◽  
J. P. Rivière ◽  
J. Delafond ◽  
...  

1997 ◽  
Vol 46 (4) ◽  
pp. 271-279 ◽  
Author(s):  
O. I. Lebedev ◽  
G. Van Tendeloo ◽  
A. A. Suvorova ◽  
I. O. Usov ◽  
A. V. Suvorov

Nano Letters ◽  
2005 ◽  
Vol 5 (2) ◽  
pp. 373-377 ◽  
Author(s):  
Vidya Ramaswamy ◽  
Tony E. Haynes ◽  
C. Woody White ◽  
Warren J. MoberlyChan ◽  
Sjoerd Roorda ◽  
...  

1989 ◽  
Vol 38 (1-4) ◽  
pp. 217-224 ◽  
Author(s):  
M.F. Wu ◽  
A. Vantomme ◽  
H. Pattyn ◽  
G. Langouche ◽  
K. Maex ◽  
...  

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2618 ◽  
Author(s):  
Caitlin A. Taylor ◽  
Samuel Briggs ◽  
Graeme Greaves ◽  
Anthony Monterrosa ◽  
Emily Aradi ◽  
...  

Palladium can readily dissociate molecular hydrogen at its surface, and rapidly accept it onto the octahedral sites of its face-centered cubic crystal structure. This can include radioactive tritium. As tritium β-decays with a half-life of 12.3 years, He-3 is generated in the metal lattice, causing significant degradation of the material. Helium bubble evolution at high concentrations can result in blister formation or exfoliation and must therefore be well understood to predict the longevity of materials that absorb tritium. A hydrogen over-pressure must be applied to palladium hydride to prevent hydrogen from desorbing from the metal, making it difficult to study tritium in palladium by methods that involve vacuum, such as electron microscopy. Recent improvements in in-situ ion implantation Transmission Electron Microscopy (TEM) allow for the direct observation of He bubble nucleation and growth in materials. In this work, we present results from preliminary experiments using the new ion implantation Environmental TEM (ETEM) at the University of Huddersfield to observe He bubble nucleation and growth, in-situ, in palladium at cryogenic temperatures in a hydrogen environment. After the initial nucleation phase, bubble diameter remained constant throughout the implantation, but bubble density increased with implantation time. β-phase palladium hydride was not observed to form during the experiments, likely indicating that the cryogenic implantation temperature played a dominating role in the bubble nucleation and growth behavior.


Sign in / Sign up

Export Citation Format

Share Document