The development steps towards the single-crystalline solidification of shaped components in space

Abstract This paper gives a survey on the activities leading to the production of single crystalline ODS components under microgravity. The starting material is alloyed powder which is densified to a compact component. The sample is covered with a ceramic mold skin prior to being remelted and solidified with a single crystal matrix which contains finely distributed oxide particle dispersion. The proces is developped in ground tests and by means of a computer assisted simulation.