A simple and low cost method for fabricating different kinds of micros
pheres, using a high temperature spouting device, is presented. As an
example, the process for making KNbO3 single crystal ferroelectric mic
rospheres is detailed in this letter. Two-dimensional structures of el
ectrorheological fluid composed of KNbO3 microspheres under an low ele
ctric field was observed. Some optical experiments with different kind
s of microspheres made by this method have also been performed.