Abstract
Mechanical synthesis of strontium doped lanthanum manganite (LSM) powders were investigated using attrition-type milling without any extra heat assistance. The starting powder materials were lanthanum oxide and manganese oxide adding to strontium carbonate or strontium hydroxide as a source of strontium. The BET equivalent diameters of them were 300nm, 70nm, 240nm and 750nm, respectively. Using strontium carbonate, electric load conditions controlled by the rotor speed were changed to make clear their effect on the reaction. At 2 and 3kW loadings, LSM was successfully synthesized. At 2kW, processing time to obtain single phase of LSM was 120min. At 3kW, the time to obtain its single phase was remarkably shortened to 30min. Furthermore, using strontium hydroxide powder, single phase of LSM was synthesized by only 10min processing at 3kW. The BET equivalent diameter of synthesized LSM powder was only 100nm.
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