Characterization and synthesis of additivecoated BaTiO3 Nano-powder

Jung Min Lee, Myoung Pyo Chun, Hyo Soon Shin, Byung Ik Kim, Jong Heun Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two different BaTiO3 (160nm) nano-powders coated with Y and with Dy were fabricated by an aqueous chemical coating method, and their dielectric properties and microstructures were investigated with X-ray diffraction, Impedance analyzer, SEMand TEM. Y and Dy were coated on the BaTiO3 powder using nitrates. Coated BaTiO3 powderswere pressed in a disk shapeand sintered at 1150~1200°C for 2 hoursin reduced atmosphere of 10%H2- 90%N2. Coating layer of the BaTiO3 particle was thin with a thickness of 3~5nm. Coated BaTiO3sintered sample exhibited alarger lattice parameter (a, c) and smaller tetragonality (c/a)than pure BaTiO3one. Y coated BaTiO3sample sintered at 1200°C showed good dielectric propertieswith ahigh dielectric constant of around 2000 and a stabletemperature coefficient of capacitance (TCC).

Original languageEnglish
Title of host publicationChemical, Material and Metallurgical Engineering III
Pages964-967
Number of pages4
DOIs
Publication statusPublished - 2014 Feb 20
Event2013 3rd International Conference on Chemical, Metallurgical Engineering, ICCMME 2013 - Zhuhai, China
Duration: 2013 Dec 102013 Dec 11

Publication series

NameAdvanced Materials Research
Volume881-883
ISSN (Print)1022-6680

Other

Other2013 3rd International Conference on Chemical, Metallurgical Engineering, ICCMME 2013
CountryChina
CityZhuhai
Period13/12/1013/12/11

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Keywords

  • Additive coating
  • BaTiO
  • Core-shell
  • MLCC
  • Nano-powder
  • Rare earth ion

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lee, J. M., Chun, M. P., Shin, H. S., Kim, B. I., & Lee, J. H. (2014). Characterization and synthesis of additivecoated BaTiO3 Nano-powder. In Chemical, Material and Metallurgical Engineering III (pp. 964-967). (Advanced Materials Research; Vol. 881-883). https://doi.org/10.4028/www.scientific.net/AMR.881-883.964