Influence of ZnO on the crystallization kinetics and properties of diopside-Ca-Tschermak based glasses and glass-ceramics

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abstract

We report on the influence of ZnO on the structural, thermal, and crystallization behavior of the diopside-Ca-Tschemak based glasses, and on the processing, microstructure, and the properties of the sintered glass ceramics. Four glasses with nominal compositions of CaMg0.8Al0.4Si1.8O6, CaMg0.75Zn0.05Al0.4Si1.8O6, CaMg0.70Zn0.10Al0.4Si1.8O6, and CaMg0.60Zn0.20Al0.4Si1.8O6 were obtained by melting at 1580 degrees C for 1 h. Structural and thermal behavior of the glasses was investigated by Fourier-transform infrared spectroscopy, density measurements, dilatometry, and differential thermal analysis. Nonisothermal crystallization kinetics has been employed to study the crystallization mechanism in the glasses. Sintering, crystallization, microstructure, and properties of the glass ceramics were investigated under nonisothermal heating conditions in the temperature range of 850-1000 degrees C. (c) 2008 American Institute of Physics.

keywords

SB-SE GLASSES; CHALCOGENIDE GLASSES; SILICATE-GLASSES; ALUMINOSILICATE GLASSES; PHYSICAL-PROPERTIES; VANADATE GLASSES; FORMING ABILITY; RO-BAO-SIO2 R; SYSTEM; MG

subject category

Physics

authors

Goel, A; Tulyaganov, DU; Shaaban, ER; Basu, RN; Ferreira, JMF

our authors

foto José Maria da Fonte Ferreira

José Maria da Fonte Ferreira

Retired Professor

Groups

G5 - Biomimetic, Biological and Living Materials

acknowledgements

This work was financially supported by FCT, Portugal (SFRH/BD/37037/2007) and University of Aveiro. Authors are thankful to Mrs. Saswati Ghosh for her assistance during electrical conductivity measurements.

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Publication Details

type
Journal Article
year
2008
journal
JOURNAL OF APPLIED PHYSICS
volume
104
article number
043529
publisher
AMER INST PHYSICS
issn
0021-8979
issue
4
digital object identifier
10.1063/1.2970170
web of science article identifier
WOS:000259265100042

Journal Metrics (JCR 2019)

Journal Impact Factor
2.286
Journal Impact Factor (5 yrs)
2.138
category normalized journal percentile
54.87

Citations

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