Solidification of Sn-Pb Eutectic System Alloys under Microgravity Conditions Using the Sounding Rocket TR-IA

Abstract

In order to understand the formation mechanisms of gravitational segregation of solidified eutectic alloys, Sounding Rocket T R- l A No. 4 will be used. This article introduces the apparatus and ex­perimental procedures in the rocket experiment. Six samples of Sn-Pb alloy containing 36, 38.1 and 40 mass%Pb are to be used and solidified isothermally under microgravity conditions. In order to compare the gravitational segregation of the ingot under the acceleration of gravity, 1 g, 10 g and 10- g,three samples of them will be melted before launching.