Apatite-wollastonite glass-ceramics. Part I : Crystallization kinetics by differential thermal analysis

Apatite-wollastonite glass-ceramics. Part I : Crystallization kinetics by differential thermal analysis

Apatite crystallization in the apatite–wollastonite glass exhibits a three-dimensional bulk mechanism with an Avrami parameter (n)≈3, while that of the second phase (wollastonite) shows a two-dimensional surface mechanism (planar growth) with n≈2. A strong effect of glass particle size on the wollas...

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Veröffentlicht in:Journal of materials science 1998-12, Vol.33 (24), p.5901-5904
Hauptverfasser: LIKITVANICHKUL, S, LACOURSE, W. C
Format: Artikel
Sprache:eng
Schlagworte:
Apatite
Applied sciences
Building materials. Ceramics. Glasses
Chemical industry and chemicals
Crystallization
Differential thermal analysis
Exact sciences and technology
Glass ceramics
Glasses
Materials science
Particle size
Product design
Wollastonite
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Zusammenfassung:Apatite crystallization in the apatite–wollastonite glass exhibits a three-dimensional bulk mechanism with an Avrami parameter (n)≈3, while that of the second phase (wollastonite) shows a two-dimensional surface mechanism (planar growth) with n≈2. A strong effect of glass particle size on the wollastonite crystallization temperature is observed. The peak temperature is lower when the particle size is smaller.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1004491107420