Abstract
The molded tourmaline/Sr-ferrite pellets is prepared by mixing tourmaline and Sr-ferrite powders with polyester resin and hardened under electric and magnetic fields. The piezoelectric-g-constant and magnetic flux density of the molded pellets were investigated.
Tourmaline particles in the molded pellet oriented toward the electric field direction for electric field strengths more than 0.5kV/mm, and the piezoelectric-g-constant of the molded pellets increased for any increse in the electric field strength. Also the piezoelectric-g-constant of the molded pellet showed a sharp increase when the thickness of the molded pellet became less than 1mm.
The magnetic flux density of molded tourmaline/Sr-feffite pellet hardened under magnetic field depended on the Sr-ferrite content.
