Abstract
Electrical resistance R of Liquid Bi-Ca alloy (ca. 65at%Ga) was measured under the low gravity, which was obtained by the launch of S520 rocket. On the cooling process from 573 K to coexistence temperature TL (539K), the temperature coefficient of R ∂ R / ∂ T, increases. Below TL the increasing tendency of ∂ R / ∂ T becomes steep down to TL - 14K. These tendencies are not so clear for the reference experiment under 1G. Moreover, the degree of supercooling is far larger for the low gravity than for 1G. These differences are explained by the differences of convection effects of fluctuating domains. It is concluded that very low gravity condition is effective to clarify the substantial feature of critical phenomena, supercooling behavior, phase separation process and spinodal for liquids with critical mixing.
