Manufacturing method of ceramic powder

A manufacturing method of ceramic powder comprising:

• synthesizing barium titanate powder from barium carbonate, titanium dioxide, manganese carbonate, and one of ammonium molybdate {(NH4)6Mo7O24.4H2O} and tungsten oxide (WO3),
• wherein:
• a specific surface area of the barium carbonate is 15 m2/g or more before the synthesizing, and a specific surface area of the titanium dioxide is 20 m2/g or more before the synthesizing;
• Mo or W acting as a donor element is solid-solved in the barium titanate powder after the synthesizing, and Mn acting as an acceptor element is solid-solved in the barium titanate powder after the synthesizing;
• a specific surface are of the barium tianate powder after the synthesizing is 4 m2/g or more 25 m2/g or less;
• a transition peak temperature between a tetragonal and a cubic at 120 degrees C. of the barium titanate powder after the synthesizing is shifted toward low temperature side by 1 degrees C. or more, compared to another barium titanate in which none of the donor element and the acceptor element are solid-solved;
• a solid solution amount of the donor element with respect to the barium titanate is 0.05 mol or more and 0.3 mol or less on a presumption that an amount of the barium titanate is 100 mol and the donor element is converted into an oxide;
• a solid solution amount of the accepter element with respect to the barium titanate is 0.02 mol or more and 0.2 mol or less on a presumption that the amount of the barium titanate is 100 mol and the acceptor element is converted into an oxide;
• and
• relationships y≥−0.0003x+1.0106, y≤−0.0002x+1.0114, 4≤x≤25 and y≤1.0099 are satisfied when a specific surface area of the ceramic powder is “x” and an axial ratio c/a of the ceramic powder is “y”.