Paper Title:
Surface and Bulk Contributions in the Crystallization Process of a Bioactive Glass
  Abstract

Bioactive glasses have attracted considerable interest in recent years. In this work, Differential Thermal Analysis (DTA) measurements were performed on bulk and powdered samples of the SiO2-Na2O-CaO-P2O5 glass system, in order to study the particle size effect on the crystal growth and nucleation process. A shift of the crystallization peak to lower temperatures and deconvolution of a slightly asymmetric crystallization peak into two separate peaks were observed with decreasing particle size. The bioactive behavior -through the process of immersion SBF- of the specific glass is studied as a function of particle size. A better bioactive response was observed increasing particle size until a specific size, further increase leading in no further improvement in the bioactive behavior.

  Info
Periodical
Key Engineering Materials (Volumes 309-311)
Main Theme
Edited by
Takashi Nakamura, Kimihiro Yamashita and Masashi Neo
Pages
313-316
DOI
10.4028/www.scientific.net/KEM.309-311.313
Citation
X. Chatzistavrou, E. Kontonasaki, K. Chrissafis, T. Zorba, P. Koidis, K. M. Paraskevopoulos, "Surface and Bulk Contributions in the Crystallization Process of a Bioactive Glass", Key Engineering Materials, Vols. 309-311, pp. 313-316, 2006
Online since
May 2006
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$32.00
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