Metals and materials international

The Korean Institute of Metals and Materials (대한금속재료학회)
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Properties and Consolidation of Nanostructured $Ce_{0.8}Gd_{0.2}O_{1.9}$ by Pulsed-Current-Activated Sintering

Shon, In-Jin;Kim, Dong-Ki;Lee, Ki-Tae;Nam, Kee-Seok

  • Published : 20081000
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Abstract

Dense nanophase Ce0.8Gd0.2O1.9 was sintered by a pulsed-current-activated sintering method within 10 min from Ce0.8Gd0.2O1.9 nanopowder made using the co-precipitation method. Sintering was accomplished under the combined effects of a pulsed current and mechanical pressure. Highly dense Ce0.8Gd0.2O1.9 with a relative density of up to 96.5 % was produced under the simultaneous application of 80 MPa of pressure and a pulsed current. The ionic conductivities and mechanical properties of the Ce0.8Gd0.2O1.9 were investigated.

Keywords

References

  1. N. Q. Minh, Science and Technology of Ceramic Fuel Cells, Elservier (1995)
  2. MS. El-Eskandarany, J. Alloy. Compd. 305, 225 (2000) https://doi.org/10.1016/S0925-8388(00)00692-7
  3. L. Fu, L. H. Cao, and Y. S. Fan, Scripta mater. 44, 1061 (2001) https://doi.org/10.1016/S1359-6462(01)00668-6
  4. K. Niihara and A. Nikahira, Advanced structural Inorganic Composite, p. 775, Elsevier Scientific Publishing Co., Trieste, Italy (1990)
  5. S. Berger, R. Porat, and R. Rosen, Prog. Mater. 42, 311 (1997) https://doi.org/10.1016/S0079-6425(97)00021-2
  6. Z. Fang and J. W. Eason, Int. J. Refract. Met. Hard Mater. 13, 297 (1995) https://doi.org/10.1016/0263-4368(95)92675-A
  7. A. I. Y. Tok, l. h. Luo, and F. Y. C. Boey, Mater. Sci. Eng. A 383, 229 (2004) https://doi.org/10.1016/j.msea.2004.05.071
  8. I. J. Shon, D. K. Kim, I. Y. Ko, J. K. Yoon, and K. T. Hong, Mater. Sci. Forum 534, 525 (2007)
  9. M. Sommer, W. D. Schubert, E. Zobetz, and P. Warbichler, Int. J. of Refractory Met. Hard Mater. 20, 41 (2002) https://doi.org/10.1016/S0263-4368(01)00069-5
  10. H. C. Kim, I. J. Shon, J. K. Yoon, and J. M. Doh, Int. J. Refract. Met. Hard Mater. 25, 46 (2007) https://doi.org/10.1016/j.ijrmhm.2005.11.004
  11. C. Suryanarayana and M. Grant Norton, X-ray Diffraction A Practical Approach, p. 213 Plenum Press (1998)
  12. D. Y. Oh, H. C. Kim, J. K. Yoon, and I. J. Shon, J. Alloy. Compd. 395, 270 (2005)
  13. N. Koichi, Ceramics 20, 1218 (1985)
  14. S. P. S. Badwal and J. Drennan, Solid State Ionics 28-30, 1451 (1988) https://doi.org/10.1016/0167-2738(88)90402-X
  15. M. Aoki, Y. M. Chiang, I. Kosacki, J. R. Lee, H. Tuller, and Y. Liu, J. Am. Ceram. Soc. 79, 1169 (1996) https://doi.org/10.1111/j.1151-2916.1996.tb08569.x
  16. X. Guo, Comput. Mater. Sci. 20, 168 (2001) https://doi.org/10.1016/S0927-0256(00)00174-9