Deuterium permeation in polycrystalline nickel pre-implanted with nickel and helium ions

San-Qiang Shi; D. A. Thompson; W. W. Smeltzer

doi:10.1016/0921-5093(92)90136-O

Deuterium permeation in polycrystalline nickel pre-implanted with nickel and helium ions

San-Qiang Shi, D. A. Thompson, W. W. Smeltzer

Research output: Journal article publication › Journal article › Academic research › peer-review

Abstract

The interaction between deuterium and irradiation defects in nickel is studied using the gas-phase permeation technique. Irradiation defects were introduced using 90 keV Ni+ions with fluences of 1014-1017ions cm-2, or 30 keV4He+ions with fluences of 1015-5 × 1016ions cm-2. Permeation results show that crystalline defects such as dislocation loops produce no measurable effect on deuterium permeation in the temperature range 370-570 K. By comparison, helium defects decrease the apparent diffusivity by four to six orders of magnitude, indicating a strong trapping effect for deuterium. These results are discussed using a simple trapping model.

Original language	English
Pages (from-to)	71-78
Number of pages	8
Journal	Materials Science and Engineering A
Volume	158
Issue number	1
DOIs	https://doi.org/10.1016/0921-5093(92)90136-O
Publication status	Published - 15 Oct 1992
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/0921-5093(92)90136-O

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abstract = "The interaction between deuterium and irradiation defects in nickel is studied using the gas-phase permeation technique. Irradiation defects were introduced using 90 keV Ni+ions with fluences of 1014-1017ions cm-2, or 30 keV4He+ions with fluences of 1015-5 × 1016ions cm-2. Permeation results show that crystalline defects such as dislocation loops produce no measurable effect on deuterium permeation in the temperature range 370-570 K. By comparison, helium defects decrease the apparent diffusivity by four to six orders of magnitude, indicating a strong trapping effect for deuterium. These results are discussed using a simple trapping model.",

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AU - Shi, San-Qiang

AU - Thompson, D. A.

AU - Smeltzer, W. W.

PY - 1992/10/15

Y1 - 1992/10/15

N2 - The interaction between deuterium and irradiation defects in nickel is studied using the gas-phase permeation technique. Irradiation defects were introduced using 90 keV Ni+ions with fluences of 1014-1017ions cm-2, or 30 keV4He+ions with fluences of 1015-5 × 1016ions cm-2. Permeation results show that crystalline defects such as dislocation loops produce no measurable effect on deuterium permeation in the temperature range 370-570 K. By comparison, helium defects decrease the apparent diffusivity by four to six orders of magnitude, indicating a strong trapping effect for deuterium. These results are discussed using a simple trapping model.

AB - The interaction between deuterium and irradiation defects in nickel is studied using the gas-phase permeation technique. Irradiation defects were introduced using 90 keV Ni+ions with fluences of 1014-1017ions cm-2, or 30 keV4He+ions with fluences of 1015-5 × 1016ions cm-2. Permeation results show that crystalline defects such as dislocation loops produce no measurable effect on deuterium permeation in the temperature range 370-570 K. By comparison, helium defects decrease the apparent diffusivity by four to six orders of magnitude, indicating a strong trapping effect for deuterium. These results are discussed using a simple trapping model.

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DO - 10.1016/0921-5093(92)90136-O

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JO - Materials Science and Engineering A

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Deuterium permeation in polycrystalline nickel pre-implanted with nickel and helium ions

Abstract

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