Sintering Behavior of 45S5 Bioglass®

Abstract:

Article Preview

In this study, we report on the effect of Bioglass® structural transformations on its sintering behaviour. In a previous paper, we showed that while heating up to 1000°C, five successive transformations occur: glassy transition, phase separation, two crystallization processes and a second glassy transition. The sintering of the material exhibits two main shrinkage stages associated to the two glassy transitions at 550°C and 850°C. At 580°C, the glass-in-glass phase separation induces a decrease of the sintering rate immediately followed by the crystallisation of the major phase Na2CaSi2O6 between 600 and 700°C, from the surface to the bulk of the particles. A completed inhibition of sintering takes place followed by a minor shrinkage due to volume crystallization. A plateau is observed until the second glassy transition.

Info:

Periodical:

Key Engineering Materials (Volumes 361-363)

Main Theme:

Edited by:

Guy Daculsi and Pierre Layrolle

Pages:

265-268

Citation:

L. Lefebvre et al., "Sintering Behavior of 45S5 Bioglass®", Key Engineering Materials, Vols. 361-363, pp. 265-268, 2008

Online since:

November 2007

Export:

Price:

$38.00

[1] W. Cao and LL. Hench: Ceram. Int., Vol. 22 (1996), pp.493-507.

[2] A. Bignon, J. Chouteau, J. Chevalier, G. Fantozi, JP. Crret, P. Chavassieu, G. Boivin, M. Melin and DJ. Hartmann : J. Mater. Sci. Mater. Med., Vol. 14 (2003), pp.1089-1097.

[3] L. Lefebvre, J. Chevalier, L. Gremillard, R. Zenati, G. Thollet, D. Bernache-Assolant and A. Govin: Acta Mater. Vol. 55 (2007), pp.3305-3313.

DOI: https://doi.org/10.1016/j.actamat.2007.01.029

[4] M.O. Prado and E.D. Zanotto: CR chimie, Vol. 5 (2002), pp.773-786.

[5] H. Rawson, in: Inorganic glass forming systems, edited by New York Academic Press; 1967, p.11.

[6] E.D. Zanotto and M.O. Prado, Phys. Chem. Glasses Vol. 42 (3) (2001), p.191.

[7] J. Zarzycky: Advances ceramics, Am. Ceram. Soc., Vol. 4, (1982), p.204.

[8] A.R. Bocaccini, W. Stumpfe, D.M. Rtaplin and C.M. Ponton: Mater. Sci. Eng., Vol. A 219 (1996), p.26.

Fetching data from Crossref.
This may take some time to load.