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Counter-diffusion and -permeation of deuterium and hydrogen through metals

Abstract

The first experiments for counter-diffusion and -permeation of deuterium and hydrogen through palladium were performed. Deuterium permeation rates against D{sub 2} pressure were measured under the condition where hydrogen permeated to opposite direction by supplying H{sub 2} gas at the permeated side of D{sub 2}. It was found that not a small amount of deuterium was clearly permeated even if the deuterium pressure was much smaller than the hydrogen pressure. Deuterium permeation rate was gradually reduced by increasing the counter H permeation. The deuterium permeation rate under the counter H permeation is well represented by a simple model in which the ratio of the deuterium permeation rates with and without the counter H permeation was proportional to the fractional concentration of deuterium in the bulk. As increasing the hydrogen counter flow, however, the deuterium permeation rate deviates from the model. This means that adsorption (absorption) of D{sub 2} from gas phase is inhibited and surface recombination of deuterium is blocked by hydrogen. (author)
Authors:
Kizu, Kaname; Tanabe,; Tetsuo, [1] 
  1. Nagoya Univ. (Japan)
Publication Date:
Mar 01, 1998
Product Type:
Conference
Report Number:
JAERI-Conf-98-006; CONF-9710221-
Reference Number:
SCA: 700480; PA: JPN-98:007181; EDB-99:017997; SN: 98001997772
Resource Relation:
Conference: 6. international workshop on ceramic breeder blanket interactions, Mito (Japan), 22-24 Oct 1997; Other Information: PBD: Mar 1998; Related Information: Is Part Of Proceedings of the sixth international workshop on ceramic breeder blanket interactions; Noda, Kenji [ed.]; PB: 296 p.
Subject:
70 PLASMA PHYSICS AND FUSION; PERMEABILITY; HYDROGEN 1; DEUTERIUM; COUNTER CURRENT; MEMBRANE TRANSPORT; PALLADIUM; TEMPERATURE RANGE 0400-1000 K; PRESSURE DEPENDENCE; PARTIAL PRESSURE; DIFFUSION
OSTI ID:
300369
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE98755721; TRN: JP9807181
Availability:
OSTI as DE98755721
Submitting Site:
JPN
Size:
pp. 99-107
Announcement Date:

Citation Formats

Kizu, Kaname, Tanabe,, and Tetsuo,. Counter-diffusion and -permeation of deuterium and hydrogen through metals. Japan: N. p., 1998. Web.
Kizu, Kaname, Tanabe,, & Tetsuo,. Counter-diffusion and -permeation of deuterium and hydrogen through metals. Japan.
Kizu, Kaname, Tanabe,, and Tetsuo,. 1998. "Counter-diffusion and -permeation of deuterium and hydrogen through metals." Japan.
@misc{etde_300369,
title = {Counter-diffusion and -permeation of deuterium and hydrogen through metals}
author = {Kizu, Kaname, Tanabe,, and Tetsuo,}
abstractNote = {The first experiments for counter-diffusion and -permeation of deuterium and hydrogen through palladium were performed. Deuterium permeation rates against D{sub 2} pressure were measured under the condition where hydrogen permeated to opposite direction by supplying H{sub 2} gas at the permeated side of D{sub 2}. It was found that not a small amount of deuterium was clearly permeated even if the deuterium pressure was much smaller than the hydrogen pressure. Deuterium permeation rate was gradually reduced by increasing the counter H permeation. The deuterium permeation rate under the counter H permeation is well represented by a simple model in which the ratio of the deuterium permeation rates with and without the counter H permeation was proportional to the fractional concentration of deuterium in the bulk. As increasing the hydrogen counter flow, however, the deuterium permeation rate deviates from the model. This means that adsorption (absorption) of D{sub 2} from gas phase is inhibited and surface recombination of deuterium is blocked by hydrogen. (author)}
place = {Japan}
year = {1998}
month = {Mar}
}