Preparation of Tourmaline Composite Materials and its Property of Far Infrared Radiance

The far infrared radiance tourmaline composite materials have been successfully prepared. From the XRD results, the composite materials were composed of tourmaline and transition metal oxides（Fe2O3, MnO2, Co2O3）and cerium oxide. Under SEM, the spherical particles of transition metal oxides were adsorbed by the flake particles of tourmaline. The composite materials show relatively high far infrared radiance than tourmaline and the mineral composite materials with smaller unit cell volume exhibits higher infrared radiance