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Sintering Characteristics of Nickel Powders for Internal Electrode of Multilayer Ceramic Capacitors

적층 세라믹 콘덴서의 내부전극용 니켈 분말의 소결 특성

  • Lee, Sang-Geun (School of Materials Science and Engineering, Busan National Univwesity) ;
  • Choi, Eun-Young (School of Materials Science and Engineering, Busan National Univwesity) ;
  • Lee, Yoon-Bok (School of Materials Science and Engineering, Busan National Univwesity) ;
  • Park, Suong-Soo (Dept. of Polymer Engineering, Pukyoung National University) ;
  • Park, Hee-Chan (School of Materials Science and Engineering, Busan National Univwesity) ;
  • Kim, Kwang-Ho (School of Materials Science and Engineering, Busan National Univwesity)
  • Published : 2003.12.01

Abstract

Nickel powders were obtained by various preparation methods, and their sintering characteristics were investigated. Nickel powders made by wet chemical process (WCP) had a higher surface area and more narrow size distribution than that of chemical vapor deposition (CVD) method. Nickel-oxide powders by the WCP method were prepared at $200^{\circ}C$ for 3 hr. The oxidation behaviour of nickel-oxide powder is similar with that of the CVD method. Nickel powders made by the WCP method showed a higher shrinkage in the range of $600^{\circ}C$$900^{\circ}C$ than that of commercial powder made by the CVD method. The similar results were observed on the surface microstructure of sintered bodies by SEM measurements.

Keywords

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