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Precursor scavenging of the resistive grain-boundary phase in 8 mol% yttria-stabilized zirconia: Effect of trace concentrations of SiO2

  • Jong-Heun Lee (a1), Toshiyuki Mori (a1), Ji-Guang Li (a1), Takayasu Ikegami (a1), John Drennan (a2) and Doh-Yeon Kim (a3)...

Abstract

The influence that trace concentrations of SiO2 have on improving grain-boundary conduction via precursor scavenging using additional heat treatment at 1200 °C for 40 h before sintering was investigated. At a SiO2-impurity level (SIL) ≤160 ppm by weight, the grain-boundary resistivity (ρgb) decreased to 20% of its value, while no improvement in grain-boundary conduction was found at a SIL ≥ 310 ppm. The correlation between the resistance per unit grain-boundary area, rgb, and average grain size indicated that the inhomogeneous distribution of the siliceous phase in the sample with a SIL ≥ 310 ppm hampered the scavenging reaction.

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Corresponding author

a)Address all correspondence to this author.Current address: School of materials science and engineering, Seoul National University, Seoul 151-742, South korea.jongheun@gong.snu.ac.kr

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1Aoki, M., Chiang, Y-M., Kosacki, I., Lee, J-R., Tuller, H., and Liu, Y., J. Am. Ceram. Soc. 79, 1169 (1996).
2Gödickemeier, M., Michel, B., Orliukas, A., Bohac, P., Sasaki, K., Gauckler, L., Henrich, H., Schwander, P., Kostorz, G., Hofmann, H., and Frei, O., J. Mater. Res. 9, 1228 (1994).
3Appel, C.C. and Bonanos, N., J. Eur. Ceram. Soc. 19, 847 (1999).
4Lee, J-H., Mori, T., Li, J-G., Ikegami, T., Komatsu, M., and Haneda, H., J. Am. Ceram. Soc. 83, 1273 (2000).
5Feighery, A.J. and Irvine, J.T.S., Solid State Ionics 121, 209 (1999).
6Guo, X., Tang, C-Q., and Yuan, R-Z., J. Eur. Ceram. Soc. 15, 25 (1995).
7Butler, E.P. and Drennan, J., J. Am. Ceram. Soc. 65, 474 (1982).
8Lee, J-H., Mori, T., Li, J-G., Ikegami, T., Komatsu, M., and Haneda, H., Electrochemistry 68, 427 (2000).
9Miyayama, M., Yanagida, H., and Asada, A., Am. Ceram. Soc. Bull. 65, 660 (1986).
10Lee, J-H., Mori, T., Li, J-G., Ikegami, T., Komatsu, M., and Haneda, H., J. Electrochem. Soc. 147, 2822 (2000).
11Mendelson, M.I., J. Am. Ceram. Soc. 52, 443 (1969).
12Badwal, S.P.S., Solid State Ionics 52, 23 (1992).
13Verkerk, M.J., Middelhuis, B.J., and Burggraaf, A.J., Solid State Ionics 6, 159 (1982).
14Gambino, J.P., Kingery, W.D., Pike, G.E., Levinson, L.M., and Phillipp, H.R., J. Am. Ceram. Soc. 72, 642 (1989).
15Hughes, A.E. and Badwal, S.P.S., Solid State Ionics 46, 265 (1991).
16Ellison, A.J.G. and Navrotsky, A., J. Am. Ceram. Soc. 75, 1430 (1992).
17Kanno, Y., J. Mater. Sci. 24, 2415 (1989).
18Mori, T., Yamamura, H., Kobayashi, K., and Mitamura, T., J. Mater. Sci. 28, 4970 (1993).
19Vilmin, G., Komarneni, S., and Roy, R., J. Mater. Sci. 22, 3556 (1987).
20Butterman, W.C. and Foster, W.R., Am. Mineral. 52, 880 (1967).
21Curtis, C.E. and Sowman, H.G., J. Am. Ceram.Soc. 36, 190 (1953).
22Du, C., Yuan, Q., and Yang, Z., J. Mater. Sci. Lett. 18, 965 (1999).
23Shoyama, M., Matsumoto, N., Hashimoto, T., Nasu, H., and Kamiya, K., J. Mater. Sci. 33, 4821 (1998).
24Kadogawa, Y. and Yamate, T., J. Ceram. Soc. Jpn. (Yogyo Kyokai Shi) 93, 74 (1985) (in Japanese).

Precursor scavenging of the resistive grain-boundary phase in 8 mol% yttria-stabilized zirconia: Effect of trace concentrations of SiO2

  • Jong-Heun Lee (a1), Toshiyuki Mori (a1), Ji-Guang Li (a1), Takayasu Ikegami (a1), John Drennan (a2) and Doh-Yeon Kim (a3)...

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