Abstract
lnterfacial stability under microgravity is studied in drop shaft facility at MG LAB in Gifu-prefecture . Breake-down wave-lengths of planar interface and tip radii of curvature of the critical dendrite grown in microgravity are measured , and it is shown that the wave-lengths and the radii of dendrite become larger than those grown on the earth (1G). [Keyword] interfacial stability, wave-length of perturbation , tip radius of dendrite
