Materials processing - A matter of gravity

The paper examines the pervasive influences of gravitational forces on processes used in the preparation of materials employed in earth-based applications and considers the knowledge and benefits which may be derived from the microgravity environment of space in improving upon these constraints. Particular attention is given to the NASA Materials Processing in Space program, which is focused on crystal growth processes, solidification processes, containerless processing, fluid and chemical processes, and bioseparation processes.