Deuterium retention by implantation in carbide-doped graphites

M. Balden; E. Oyarzabal; E. De Juan Pardo; K. Durocher; J. Roth; C. Garcia-Rosales

Deuterium retention by implantation in carbide-doped graphites

M. Balden, E. Oyarzabal, E. De Juan Pardo, K. Durocher, J. Roth, C. Garcia-Rosales

Research output: Contribution to journal › Conference article › peer-review

Abstract

For fine-grain graphites with different final heat treatment, the influences of the porosity, degree of graphitization, and dopant (TiC, VC, WC, and ZrC) on the fluence dependence of the retention of 1 keV deuterium were investigated using thermal desorption spectroseopy. A strong decrease of the D retention for fluences higher than 10²¹ D/m² was observed for the undoped graphites graphitized at temperatures above 2000 K compared to material only calcined at 1270 K. Due to the identical manufacturing processes for the carbide-doped graphites used in this study, the structure is comparable for all of them. The choice of dopant as well as the ratio of open to closed porosity show no influence on the D retention. Therefore, these properties of the graphites can be neglected for hydrogen retention estimations.

Original language	English
Pages (from-to)	38-42
Number of pages	5
Journal	Physica Scripta T
Volume	103
Publication status	Published - 1 Dec 2002
Externally published	Yes
Event	International Workshop on Hydrogen Isotopes in Fusion Reactor Materials - Tokyo, Japan Duration: 22 May 2002 → 24 May 2002

Cite this

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title = "Deuterium retention by implantation in carbide-doped graphites",

abstract = "For fine-grain graphites with different final heat treatment, the influences of the porosity, degree of graphitization, and dopant (TiC, VC, WC, and ZrC) on the fluence dependence of the retention of 1 keV deuterium were investigated using thermal desorption spectroseopy. A strong decrease of the D retention for fluences higher than 1021 D/m2 was observed for the undoped graphites graphitized at temperatures above 2000 K compared to material only calcined at 1270 K. Due to the identical manufacturing processes for the carbide-doped graphites used in this study, the structure is comparable for all of them. The choice of dopant as well as the ratio of open to closed porosity show no influence on the D retention. Therefore, these properties of the graphites can be neglected for hydrogen retention estimations.",

author = "M. Balden and E. Oyarzabal and {De Juan Pardo}, E. and K. Durocher and J. Roth and C. Garcia-Rosales",

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journal = "Physica Scripta T",

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TY - JOUR

T1 - Deuterium retention by implantation in carbide-doped graphites

AU - Balden, M.

AU - Oyarzabal, E.

AU - De Juan Pardo, E.

AU - Durocher, K.

AU - Roth, J.

AU - Garcia-Rosales, C.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - For fine-grain graphites with different final heat treatment, the influences of the porosity, degree of graphitization, and dopant (TiC, VC, WC, and ZrC) on the fluence dependence of the retention of 1 keV deuterium were investigated using thermal desorption spectroseopy. A strong decrease of the D retention for fluences higher than 1021 D/m2 was observed for the undoped graphites graphitized at temperatures above 2000 K compared to material only calcined at 1270 K. Due to the identical manufacturing processes for the carbide-doped graphites used in this study, the structure is comparable for all of them. The choice of dopant as well as the ratio of open to closed porosity show no influence on the D retention. Therefore, these properties of the graphites can be neglected for hydrogen retention estimations.

AB - For fine-grain graphites with different final heat treatment, the influences of the porosity, degree of graphitization, and dopant (TiC, VC, WC, and ZrC) on the fluence dependence of the retention of 1 keV deuterium were investigated using thermal desorption spectroseopy. A strong decrease of the D retention for fluences higher than 1021 D/m2 was observed for the undoped graphites graphitized at temperatures above 2000 K compared to material only calcined at 1270 K. Due to the identical manufacturing processes for the carbide-doped graphites used in this study, the structure is comparable for all of them. The choice of dopant as well as the ratio of open to closed porosity show no influence on the D retention. Therefore, these properties of the graphites can be neglected for hydrogen retention estimations.

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M3 - Conference article

AN - SCOPUS:0037481199

SN - 0281-1847

VL - 103

SP - 38

EP - 42

JO - Physica Scripta T

JF - Physica Scripta T

T2 - International Workshop on Hydrogen Isotopes in Fusion Reactor Materials

Y2 - 22 May 2002 through 24 May 2002

ER -

Deuterium retention by implantation in carbide-doped graphites

Abstract

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