La2O3의 메카노케미컬 합성에 의한 LaNiO3결정상 생성

Mechanochemical Synthesis of LaNiO3 Crystalline Phase from Mixture of La2O3sub> and NiO

  • 김대영 (부경대학교 전자공학과) ;
  • 김강언 (부경대학교 전자공학과) ;
  • 이명교 (부경대학교 전자공학과) ;
  • 정수태 (부경대학교 전자공학과)
  • 발행 : 2003.08.01


The syntheses of LaNiO$_3$Perovskite crystalline phase from mixtures of La$_2$O$_3$and NiO via it mechanochemical(used planetary mill) and a wet ball mill process were investigated. A single and stable LaNiO$_3$perovskite crystalline phase was successfully prepared by using a heat free mechanochemical process which produced a fine amorphous powder, while that phase was not formed in a wet ball mill process which needed heat treatment ranging from 500 to 150$0^{\circ}C$ and produced a coarse powder. It was shown that the LaNiO$_3$ceramics made of the mechanochemically synthesized powder possesed a good metallic characteristic.


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