专利名称：MANUFACTURE OF THIONICKEL FERRITE *NIFE2S4* BY APPLYING HIGH PRESSURE AND HIGH TEMPERATURE
发明人：HAYASHI HIROSHI,NISHAMA GORO
申请号：JP9482279
申请日：19790724
公开号：JPS5825053B2
公开日：
19830525
摘要：PURPOSE:To manufacture a novel substance NiFe2S4 in a high yield by simultaneously applying a specified temp. or above and a specified pressure or above to a mixture consisting of nickel, iron and sulfur in a specified molar ratio. CONSTITUTION:A mixture consisting of nickel, iron and sulfur in the 1:2:4 molar ratio is premolded, put in a hard lead pipe, and charged into pyrophyllite as a pressure medium. >=6.5GPa pressure and >=700 deg.C temp. are simultaneously applied with a press for generating super high pressure and high temp. The treatment time is 10-60min. The crystal structure undergoes a change, and by rapidly cooling the pipe to ordinary temp. and reducing the pressure to ordinary pressure, a novel substance thionickel ferrite (NiFe2S4) is obtd. in a high yield.
申请人：KOGYO GIJUTSUIN
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