| Nanometer scientific technology is renowned as a core of next information times.Nanometer ceramic powders have many unique properties in the aspects of magnetic susceptibility, photoabsorption,thermal resistance,chemical activity, catalytic activity,catalysis,melting point and sintering.They have been used in the industries of fine ceramics,catalyst,magnetic materials and sensors.The preparation and characteristics of nanometer ceramic powders are mainly described.The problems to be solved theoretically and practically and the tendency for further development are provided in this paper. |