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Densification mechanism involved during spark plasma sintering of a codoped α-alumina material: Part I. Formal sintering analysis

Published online by Cambridge University Press:  31 January 2011

G. Bernard-Granger  and
C. Guizard
C. Guizard
Affiliation:
Laboratoire de Synthèse et Fonctionnalisation des Céramiques, UMR 3080 CNRS/Saint-Gobain, Saint-Gobain C.R.E.E., 84306 Cavaillon Cedex, France
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Abstract

Spark plasma sintering (SPS) of a codoped α-alumina powder has been investigated at temperatures between 850 and 1200 °C. The “grain size versus relative density” trajectory showed a significant grain growth as soon as the residual porosity closed. The densification mechanism was determined by anisothermal (investigation of the heating part of a SPS run) and isothermal methods. It was proposed that grain-boundary sliding, accommodated by oxygen grain-boundary diffusion, governed densification.

Keywords

CeramicDensificationSintering
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 1 , January 2009 , pp. 179 - 186
Copyright
Copyright © Materials Research Society 2009

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References

REFERENCES

1.Groza, J.R., Curtis, J.D., Krämer, M.: Field-assisted sintering of nanocrystalline titanium nitride. J. Am. Ceram. Soc. 83, 1281 2000CrossRefGoogle Scholar
2.Shen, Z., Johnsson, M., Zhao, Z., Nygren, M.: Spark plasma sintering of alumina. J. Am. Ceram. Soc. 85, 1921 2002CrossRefGoogle Scholar
3.Kim, B.-N., Hiraga, K., Morita, K., Yoshida, H.: Spark plasma sintering of transparent alumina. Scr. Mater. 57, 607 2007CrossRefGoogle Scholar
4.Suganuma, M., Kitagawa, Y., Wada, S., Murayama, N.: Pulsed electric current sintering of silicon nitride. J. Am. Ceram. Soc. 86, 387 2003CrossRefGoogle Scholar
5.Bernard-Granger, G., Guizard, C.: Spark plasma sintering of a commercially available granulated zirconia powder: I. Sintering path and hypotheses about the mechanism(s) controlling densification. Acta Mater. 55, 3493 2007CrossRefGoogle Scholar
6.Bangchao, Y., Jiawen, J., Yican, Z.: Spark-plasma sintering the 8-mol% yttria-stabilized zirconia electrolyte. J. Mater. Sci. Lett. 39, 6863 2004Google Scholar
7.Yamamoto, T., Kitaura, H., Kodera, Y., Ishii, T., Ohyanagi, M., Munir, Z.A.: Consolidation of nanostructured β-SiC by spark plasma sintering. J. Am. Ceram. Soc. 87, 1436 2004CrossRefGoogle Scholar
8.Frage, N., Cohen, S., Meir, S., Kalabukhov, S., Dariel, M.P.: Spark plasma sintering (SPS) of transparent magnesium–aluminate spinel. J. Mater. Sci. 42, 3273 2007CrossRefGoogle Scholar
9.Morita, K., Kim, B-N., Hiraga, K., Yoshida, H.: Fabrication of transparent MgAl2O4 spinel polycrystal by spark plasma sintering processing. Scr. Mater. 58, 1114 2008CrossRefGoogle Scholar
10.Chaim, R., Marder-Jaeckel, R., Shen, J.Z.: Transparent YAG ceramics by surface softening of nanoparticles in spark plasma sintering. Mater. Sci. Eng., A 429, 74 2006CrossRefGoogle Scholar
11.Chaim, R., Margulis, M.: Densification maps for spark plasma sintering of nanocrystalline MgO ceramics. Mater. Sci. Eng., A 407, 180 2005CrossRefGoogle Scholar
12.Tokita, M.: Mechanism of spark plasma sintering and its application to ceramics. Nyu Seramikkusu 10, 43 1997Google Scholar
13.Mamedov, V.: Spark plasma sintering as advanced PM sintering method. Powder Metall. 45, 322 2002CrossRefGoogle Scholar
14.Reed, J.S.: Principles of Ceramic Processing 2nd ed. John Wiley & Sons Inc. New York 1995 p. 438.Google Scholar
15.Bernard-Granger, G., Guizard, C., Addad, A.: Sintering of an ultra pure α-alumina powder: I. Densification, grain growth and sintering path. J. Mater. Sci. 42, 6316 2007CrossRefGoogle Scholar
16.Bernard-Granger, G., Guizard, C.: Apparent activation energy for the densification of a commercially available granulated zirconia powder. J. Am. Ceram. Soc. 90, 1246 2007CrossRefGoogle Scholar
17.Bernard-Granger, G., San-Miguel, L., Guizard, C.: Sintering behavior and optical properties of yttria. J. Am. Ceram. Soc. 90, 2698 2007CrossRefGoogle Scholar
18.Brook, R.J., Gilbert, E., Hind, D., Vieira, J.M.: Sintering—Theory and Practice edited by D. Kolar, S. Pejovnik, and M.M. Ristic Elsevier Amsterdam 1982 p. 585Google Scholar
19.Coble, R.L.: Diffusion models for hot pressing with surface energy and pressure effects as driving forces. J. Appl. Phys. 41, 4798 1970CrossRefGoogle Scholar
20.McLean, D., Halle, K.F.: Structural Processes in Creep Spec. Rep. No. 70 The Iron and Steel Institute London 1961 19Google Scholar
21.Mukherjee, A.K., Bird, J.E., Dorn, J.E.: Experimental correlations for high-temperature creep. Trans ASM 62, 155 1969Google Scholar
22.Herring, C.: Diffusional viscosity of a polycrystalline solid. J. Appl. Phys. 21, 437 1950CrossRefGoogle Scholar
23.Bernard-Granger, G., Guizard, C.: Sintering of an ultra pure α-alumina powder: II. Mechanical, thermo-mechanical, optical properties and missile dome design. J. Mater. Sci. 2008 (submitted)CrossRefGoogle Scholar
24.Ashby, M.F., Verrall, R.A.: Diffusion accommodated flow and superplasticity. Acta Metall. 21, 149 1973CrossRefGoogle Scholar
25.Burton, B.: The relationship between dislocation recovery creep and vacancy diffusion creep. Philos. Mag. A 48, L9 1983CrossRefGoogle Scholar
26.Weertman, J.: Dislocation climb theory of steady-state creep. Trans. ASM 61, 681 1968Google Scholar
27.Weertman, J.: High temperature creep produced by dislocation motion. John E. Dorn Memorial SymposiumCleveland, OH1972Google Scholar
28.Messaoudi, K., Huntz, A.M., Lesage, B.: Diffusion and growth mechanisms in Al2O3 scales on kinetic Fe–Cr–Al alloys. Mater. Sci. Eng., A 247, 248 1998CrossRefGoogle Scholar
29.Clemens, D., Bongartz, K., Quaddakers, W.J., Nickel, H., Holzbrecher, H., Brecker, J.S.: Determination of lattice and grain-boundary diffusion coefficients in protective alumina scales on high temperature alloys using SEM, TEM and SIMS. Fresenius J. Anal. Chem. 353, 267 1995Google ScholarPubMed
30.Heuer, A.H.: Oxygen and aluminium diffusion in α-Al2O3. How much do we really understand? J. Eur. Ceram. Soc. 28, 1495 2008CrossRefGoogle Scholar
31.Prot, D., Le Gall, M., Lesage, B., Huntz, A.M., Monty, C.: Self-diffusion in α-Al2O3. IV. Oxygen grain-boundary self-diffusion in undoped and yttria-doped alumina polycrystals. Philos. Mag. A 73, 935 1996CrossRefGoogle Scholar
32.Nakagawa, T., Sakaguchi, I., Shibata, N., Matsunaga, K., Mizoguchi, T., Yamamoto, T.: Yttrium doping effect on oxygen grain-boundary diffusion in Al2O3. Acta Mater. 55, 6627 2007CrossRefGoogle Scholar
33.Panda, P.C., Raj, R., Morgan, P.E.D.: Superplastic deformation in fine-grained MgO.2Al2O3 spinel. J. Am. Ceram. Soc. 68, 522 1985CrossRefGoogle Scholar
34.Morita, K., Hiraga, K., Kim, B-N., Suzuki, T.S., Sakka, Y.: Strain softening and hardening during superplastic-like flow in a fine-grained MgAl2O4 spinel polycrystal. J. Am. Ceram. Soc. 87, 1102 2004CrossRefGoogle Scholar
35.Bernard-Granger, G., Benameur, N., Addad, A., Nygren, M., Guizard, C., Deville, S.: Spark plasma sintering of MgAl2O4. J. Am. Ceram. Soc. 2008 (submitted)Google Scholar