Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
권호 표지
DOI QR코드

DOI QR Code

Grain Shape and Grain Growth Behavior in the Na1/2Bi1/2TiO3-BaTiO3 System

Na1/2Bi1/2TiO3-BaTiO3 계에서 입자모양과 입자성장 거동

  • Moon Kyoung-Seok (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kang Suk-Joong (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology)
  • 문경석 (한국과학기술원 신소재공학과) ;
  • 강석중 (한국과학기술원 신소재공학과)
  • Published : 2006.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

The grain growth behavior of $0.95Na_{1/2}Bi_{1/2}TiO_{3}-0.05BaTiO_{3}$ (NBT-5BT) has been investigated with respect to the grain shape. The powder compacts of NBT-5BT were sintered at 1200 for various times. The corresponding equilibrium shape was a round-edged cube with flat {100}-faces. Abnormal grains were not observed in the specimens sintered for 1 to 12 h but abnormal grains appeared when sintered for 24 h. Before the formation of abnormal grains, a valley was observed in the measured grain size distribution of NBT-5BT, showing that the grain size distribution was a combination of two unimodal distributions. The present result suggests that the grain growth in NBT-5BT was governed by the growth of facet planes which would occur via 2-dimansional nucleation and growth.

Keywords

References

  1. GH. Haertling: J. Am. Ceram. Soc., 82 (1999) 797 https://doi.org/10.1111/j.1151-2916.1999.tb01840.x
  2. I.M. Lifshitz and v.v. Slyozov: J. Phys. Chern. Solids, 19 (1961) 35
  3. C. Wagner: Z. Elektrochem., 65 (1961) 581
  4. Y.J. Park, N.M. Hwang and D.Y. Yoon: Metall. Mater. Trans. A, 27 (1996) 2809
  5. B.-K. Lee, S.-Y. Chung and S.-J.L. Kang: Acta Mater., 48 (2000) 1575 https://doi.org/10.1016/S1359-6454(99)00434-6
  6. C.W Park and D.Y. Yoon: J. Am. Ceram. Soc., 83 (2000) 2605 https://doi.org/10.1111/j.1151-2916.2000.tb01596.x
  7. S.B. Lee, D.Y. Yoon and M.F. Henry: Acta Mater., 48 ] (2000) 3071 https://doi.org/10.1016/S1359-6454(00)00119-1
  8. C.W Jang, J. Kim and S.J.L. Kang: J. Am. Ceram. Soc., 85 (2002) 1281 https://doi.org/10.1111/j.1151-2916.2002.tb00258.x
  9. S.Y. Chung, D.Y. Yoon and S.J.L. Kang: Acta Mater., 50 (2002) 3361 https://doi.org/10.1016/S1359-6454(02)00139-8
  10. B.K. Yoon, B.A. Lee and S.J.L. Kang: Acta Mater., 53 (2005) 4677 https://doi.org/10.1016/j.actamat.2005.06.021
  11. S.J.L. Kang: Sintering: Densification, Grain Growth & Microstructure, Elsevier Butterworth-Heinemann, Oxford, UK (2005)
  12. T. Takahashi, K.I. Maruyama and K. Sakata: Jpn. J. Appl. Phys., 30 (1991) 2236 https://doi.org/10.1143/JJAP.30.2236
  13. F.C. Frank: Growth and Perfection of Crystals, R.H. Doremus, B.W Roberts and D. Turnbull (Ed.), Wiley, N.Y. (1958) 411
  14. C. Herring: Phys. Reviews, 83 (1951) 87
  15. C. Rottman and M. Wortis: Phys. Reports, 103 (1984) 59
  16. J.W Cahn, WB. Hilling and G.W Sears: Acta Metall., 12 (1964) 1421 https://doi.org/10.1016/0001-6160(64)90130-0
  17. D.Y. Yoon, C.W. Park and J.B. Koo: Ceramic Interface 2, H.I. Yoo and S.J.L. Kang (Ed.), Institute of Materials, London, UK (2001) 3
  18. J.G. Fisher, M.S. Kim, H.Y. Lee and S.J.L. Kang: J. Am. Ceram. Soc., 83 (2000) 2654 https://doi.org/10.1111/j.1151-2916.2000.tb01610.x

Cited by

  1. Effect of Na2CO3 Addition on Grain Growth Behavior and Solid-state Single Crystal Growth in the Na0.5Bi0.5TiO3-BaTiO3 System vol.25, pp.2, 2018, https://doi.org/10.4150/KPMI.2018.25.2.104