| abstract |
A method is provided for producing a pulverulent precursor material of the general formula M1 x M2 y (Si,Al) 12 (O,N) 16 or M1 2-z M2 z Si 8 Al 4 N 16 having the method steps A) producing a pulverulent mixture of starting materials, B) calcining the mixture under a protective gas atmosphere and subsequent grinding, wherein in method step A) at least one nitride with a specific surface area of greater than 2 m 2 /g is selected as starting material. A pulverulent precursor material and the use thereof are additionally provided. |