| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a compound oxide powder by heat-treating a combined powder in which different powders are bound together which is obtained by applying a mechanical action including compressive force and shearing force on a raw material powder comprising a plurality of powders, where production can be made with a few number of processes while formation of aggregates is suppressed. <P>SOLUTION: This method employs a powder-treating apparatus 50 having a rotating body 2 equipped with a plurality of blades 3 and a casing 1 equipped with an inner peripheral surface close to the tip end of the blade 3, where the blades 3 adjacent to each other in the axial direction of the rotating body 2 are extended in directions different from each other from the axial center X, and at least a pair of blades 3 adjacent to each other along the axial center X are inversely inclined to each other with respect to the axial center X; and the method includes an initial step where the rotating body 2 is rotated at relatively low speed and a latter step where the rotating body 2 is rotated at higher speed than that in the initial step. <P>COPYRIGHT: (C)2010,JPO&INPIT |
