Preflight diffusion experiments on liquid metals under 1g conditions for the FOTON-M2 mission

Shinsuke Suzuki*, Kurt Helmut Kraatz, Günter Frohberg, Ralca Roşu, Wolfgang Wendl, German Müller-Vogt

*この研究の対応する著者

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

We measured diffusion of up to 5% Ag in liquid Pb, using the Foton shear cell (designed and used for the FOTON-M2 mission). Since the density change of the alloy with composition has been reported to be very small but is not reliably known, we performed two arrangements of layering: (a) with PbAg on top and Pb below and (b) with Pb on top and PbAg below. The Berlin group did interdiffusion experiments from a "thick layer" of PbAg into "semi-infinite" Pb and the Karlsruhe group did the typical "interdiffusion" experiments with a diffusion couple of PbAg versus Pb. The results of both groups were equivalent, showing much lower D values for arrangement (b) than for (a). The lower values were even definitely lower than reference microgravity values from MIR/MIM and could be fitted by D = AT n with n about 2.2. We discuss the stability/instability by density layering depending on the arrangement.

本文言語English
ホスト出版物のタイトルInterdisciplinary Transport Phenomena in the Space Sciences
出版社Blackwell Publishing Inc.
ページ380-394
ページ数15
ISBN(印刷版)1573316393, 9781573316392
DOI
出版ステータスPublished - 2006 9
外部発表はい

出版物シリーズ

名前Annals of the New York Academy of Sciences
1077
ISSN(印刷版)0077-8923
ISSN(電子版)1749-6632

ASJC Scopus subject areas

  • 神経科学(全般)
  • 生化学、遺伝学、分子生物学(全般)
  • 科学史および科学哲学

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