Hostname: page-component-f554764f5-nwwvg Total loading time: 0 Render date: 2025-04-21T06:14:49.075Z Has data issue: false hasContentIssue false
  • English
  • Français

Characterization and stabilization of Si3N4 suspensions

Published online by Cambridge University Press:  03 March 2011

C. Galassi ,
E. Rastelli ,
E. Roncari ,
S. Ardizzone  and
M.G. Cattania
C. Galassi
Affiliation:
IRTEC-CNR, Via Granarolo 64, 48018 Faenza, Italy
E. Rastelli
Affiliation:
IRTEC-CNR, Via Granarolo 64, 48018 Faenza, Italy
E. Roncari
Affiliation:
IRTEC-CNR, Via Granarolo 64, 48018 Faenza, Italy
S. Ardizzone
Affiliation:
Department of Physical Chemistry and Electrochemistry, University of Milan, Via Golgi 19, 20133 Milan, Italy
M.G. Cattania
Affiliation:
CSRSRC-CNR and Department of Physical Chemistry and Electrochemistry, University of Milan, Via Golgi 19, 20133 Milan, Italy
Get access

Abstract

Two commercial Si3N4 powders were mixed with Al2O3 and Y2O3 through coprecipitation of the oxides from solutions of nitrates. The samples were characterized by XPS spectroscopy and electrophoretic mobility determinations on the suspensions. Sedimentation tests indicated that an oxylignin-based polyelectrolyte proved effective in the dispersion of the powders. The adsorption of the deflocculant followed Langmuir type isotherms characterized by values of the standard free energy of adsorption in the range typical of physisorption processes. The results of the different characterizations are discussed point by point, and different localizations of the dispersant in the interfacial region of the different samples are proposed.

Type
Articles
Information
Journal of Materials Research , Volume 10 , Issue 2 , February 1995 , pp. 339 - 344
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

1Wotting, G. and Ziegler, G., Ceram. Int. 10 (1), 18 (1984).CrossRefGoogle Scholar
2Wotting, G. and Ziegler, G., Intercer. 2, 32 (1986).Google Scholar
3Wotting, G. and Ziegler, G., Science of Ceramics, edited by Vincenzini, P. (Ceramurgia srl. Faenza Press, 1980), Vol. 12.Google Scholar
4Brave, W., Wotting, G., and Ziegler, G., Special Ceramics (The Institute of Ceramics, Stoke-on-Trent, 1986), Vol. 8, p. 71.Google Scholar
5Bowen, L. J., Weston, R. J., Carruthers, T. J., and Brook, R. H., J. Mater. Sci. 13, 341 (1978).CrossRefGoogle Scholar
6Babini, G. N., Bellosi, A., and Vincenzini, P., Ceram. Int. 6, 91 (1980).CrossRefGoogle Scholar
7Babini, G. N., Bellosi, A., and Vincenzini, P., Mater. Chem. Phys. 11, 365 (1984).CrossRefGoogle Scholar
8Cambier, F., Leriche, A., and Vandeneed, V., Ceramic Materials and Components for Engines, edited by Bunk, W. and Hausner, N. (Verlag Deutsche Keramische Gesellschaft, 1986), Part I, p. 55.Google Scholar
9Pickup, H., Gilbart, E., Brook, R. J., Leriche, A., and Cambier, F., Ceramic Materials and Components for Engines, edited by Bunk, W. and Hausner, N. (Verlag Deutsche Keramische Gesellschaft, 1986), Part II, p. 63.Google Scholar
10Hampshire, J., Pomeroy, M. J., and Saruhan, B., Ceramic Materials and Components for Engines, edited by Bunk, W. and Hausner, N. (Verlag Deutsche Keramische Gesellschaft, 1986), Part III, p. 71.Google Scholar
11Bellosi, A., Galassi, C., and Dalle Fabbriche, D., High Temp.–High Press. 20 (3), 335.Google Scholar
12Galassi, C., Biasini, V., and Bellosi, A., Processing of Advanced Materials (Chapman and Hall, London 1993), Vol. 3, p. 153.Google Scholar
13Shaw, T. M. and Pethica, B. A., J. Am. Ceram. Soc. 69 (2), 88–93 (1986).CrossRefGoogle Scholar
14Liden, E., Bergström, L., Persson, M., and Carlsson, R., J. Eur. Ceram. Soc. 7, 361 (1991).CrossRefGoogle Scholar
15Busca, G., Lorenzelli, V., Baraton, M. I., and Marchan, R., J. Mol. Struct. 143, 525 (1986).CrossRefGoogle Scholar
16Greil, P., Nitzsche, R., Friedrich, H., and Hermel, W., J. Eur. Ceram. Soc. 7, 353 (1991).CrossRefGoogle Scholar
17Bergström, L., Colloids and Surfaces (Amsterdam) (1992).Google Scholar
18Moulder, J. F., Stickle, W. F., and Bomben, K. D., Handbook of X-ray Photoelectron Spectroscopy (Perkin-Elmer Corporation, Eden Prairie, MN, 1992).Google Scholar
19Parks, G. A., Chem. Rev. 65, 177 (1965).CrossRefGoogle Scholar