Macrosegregation Forms during Phase Separation (image) Science China Press Share Print E-Mail Caption Macrosegregation forms during phase separation period and phase separation time increases with the increase of melt undercooling (a). It always takes place regardless of undercooling on the Earth's ground. The phase with larger density, such as Cu-rich phase settles down to the bottom (b) due to Stokes motion. The Stokes motion velocity increases with the increase of droplet radius (c). The solute contents in Co-rich zone decrease with the enhancement of melt undercooling (d) and (e). Credit ©Science China Press Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.