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Sintering polydispersed spherical glass particles

Published online by Cambridge University Press:  31 January 2011

Miguel O. Prado ,
Edgar D. Zanotto  and
Catia Fredericci
Miguel O. Prado
Affiliation:
Vitreous Materials Laboratory, Department of Materials Engineering, Federal University of São Carlos, C.P. 676, CEP 13.565–905-; São Carlos, SP, Brazil
Edgar D. Zanotto
Affiliation:
Vitreous Materials Laboratory, Department of Materials Engineering, Federal University of São Carlos, C.P. 676, CEP 13.565–905-; São Carlos, SP, Brazil
Catia Fredericci
Affiliation:
Vitreous Materials Laboratory, Department of Materials Engineering, Federal University of São Carlos, C.P. 676, CEP 13.565–905-; São Carlos, SP, Brazil
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Abstract

We used the Clusters model to study the densification kinetics and resulting porosity of a compact of polydispersed soda-;lime-;silica glass spheres. In addition to the physical data (viscosity, surface tension, particle size distribution) required by the Clusters model, for the first time in glass-;sintering studies, we took extra variables into account: the average number of necks per sphere, the effects of pre-;existing crystals on the particle surfaces, and sample size. The model predicted both the densification kinetics and the resulting pore-;size distribution of sintered compacts. A cross section of a porous sample displayed a porosity pattern that agreed with computer-;simulated cross sections, whose pore-;size distributions was calculated via the Clusters model using a Monte Carlo technique. Its capacity to predict both density and pore-;size distribution makes the Clusters model a valuable tool for designing sintered glasses with any desired microstructure.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 6 , June 2003 , pp. 1347 - 1354
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

1.Frenkel, J., J. Phys. (USSR) IX, 385 (1945).Google Scholar
2.Chiang, Y-M., Birnie, D.P. III, and Kingery, W.D., in Physical Ceramics (Wiley, New York, 1997), p. 392.Google Scholar
3.Scherer, G.W., J. Am. Ceram. Soc. 60, 236 (1977).CrossRefGoogle Scholar
4.Scherer, G.W. and Bachman, D.L., J. Amer. Ceram. Soc. 60, 239 (1977).Google Scholar
5.Scherer, G.W., J. Amer. Ceram. Soc. 60, 243 (1977).CrossRefGoogle Scholar
6.Prado, M.O., Zanotto, E.D., and Müller, R., J. Non-Cryst Solids 279, 169 (2001).CrossRefGoogle Scholar
7.Zanotto, E.D. and Prado, M.O., Phys. Chem. Glasses 42, 191 (2001).Google Scholar
8.Prado, M.O. and Zanotto, E.D., Glass Sci Technol. 73, Suppl. C1, 194 (2000).Google Scholar
9.Cutler, I.B., J. Am. Ceram. Soc. 51, 604 (1968).CrossRefGoogle Scholar
10.Müller, R., Glastech. Ber. Glass Science & Tech. 67C, 93 (1994).Google Scholar
11.Lange, F.F., J. Am. Ceram. Soc. 67, 83 (1984).CrossRefGoogle Scholar
12.Exner, H.E. and Giess, E.A., J. Mater. Res. 3, 122 (1988).Google Scholar
13.Boccaccini, A.R., J. Mater. Sci. Lett. 12, 943 (1993).Google Scholar
14.Avramov, I. and Voelksch, G., J. Non-Cryst Solids 304, 25 (2002).CrossRefGoogle Scholar
15.Webb, P.A. and Orr, C., Analytical Methods in Fine Particle Technology (Micromeritics Instruments Corp., Norcross, WI, 1997).Google Scholar
16.DeHoff, R.T. and Rhines, F.N., Trans. Metall. Soc. AIME 221, 975 (1961).Google Scholar
17.Giess, E.A., Fletcher, J.P., and Herron, L.W., J. Am. Ceram. Soc. 67, 549 (1984).CrossRefGoogle Scholar