The critical behaviour under microgravity of liquid alloys with mutual immiscibility

The process of two-liquid phase separation (TLPS) was studied by the electrical resistivity, rho, both on the ground and under microgravity obtained on board the sounding rocket. On cooling to the critical temperature, Tc, on the ground, increase of rho and decrease of the temperature coefficient of...

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Bibliographic Details
Published inMeasurement science & technology Vol. 16; no. 2; pp. 345 - 353
Main Authors Itami, Toshio, Masaki, Tadahiko
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.02.2005
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Summary:The process of two-liquid phase separation (TLPS) was studied by the electrical resistivity, rho, both on the ground and under microgravity obtained on board the sounding rocket. On cooling to the critical temperature, Tc, on the ground, increase of rho and decrease of the temperature coefficient of rho, drho/dT were found in the homogeneous liquid phase of liquid Bi-Ga and Cd-Ga alloys. However, increase of rho and decrease of drho/dT were observed for the liquid Hg-Ga system. Both tendencies were explained successfully by the concentration fluctuation model. The rocket experiment for the rho of liquid Bi-Ga alloys revealed that, under microgravity, the concentration fluctuation grows extensively and the nucleation for TLPS is suppressed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/16/2/004