Thermal diffusion of tritium in Nb metal

Masayasu Sugisaki, Kazuya Idemitsu, Satoru Mukai, Hirotaka Furuya

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Thermal diffusion phenomena of tritium in Nb metal are studied for temperatures between 100°-300°C. Some special types of apparatus and samples are developed to determine the distribution of tritium in the transient state of the thermal diffusion. By least squares fitting of the experimental data to the theoretical curve based on irreversible thermodynamics, the heat of transport, Q*, and the diffusion coefficient, D, of tritium at an average temperature of 200°C are determined to be 18.0 kJ/mol and 1.6 x 10-5 cm2/sec, respectively. The importance of the thermal diffusion phenomena is discussed in connection with tritium permeation through the first wall of a nuclear fusion reactor.

Original languageEnglish
Pages (from-to)1493-1497
Number of pages5
JournalJournal of Nuclear Materials
Volume104
Issue numberC
DOIs
Publication statusPublished - Jan 1 1981

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Thermal diffusion
Tritium
thermal diffusion
tritium
Metals
metals
fusion reactors
Fusion reactors
nuclear fusion
Permeation
diffusion coefficient
Thermodynamics
heat
Temperature
thermodynamics
temperature
curves

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Cite this

Thermal diffusion of tritium in Nb metal. / Sugisaki, Masayasu; Idemitsu, Kazuya; Mukai, Satoru; Furuya, Hirotaka.

In: Journal of Nuclear Materials, Vol. 104, No. C, 01.01.1981, p. 1493-1497.

Research output: Contribution to journalArticle

Sugisaki, Masayasu ; Idemitsu, Kazuya ; Mukai, Satoru ; Furuya, Hirotaka. / Thermal diffusion of tritium in Nb metal. In: Journal of Nuclear Materials. 1981 ; Vol. 104, No. C. pp. 1493-1497.
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