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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
materials science
Non-isothermal crystallization kinetic studies on MgO-Al
2
O
3
-SiO
2
-TiO
2
glass
Journal of Non-Crystalline Solids, Volume 353, No. 24-25, Year 2007
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Description
Thermal stability and crystallization kinetics of the glass 21% MgO, 21.36% Al2O3, 53.32% SiO2 and 4.11% TiO2 (mol%) has been studied using differential thermal analysis (DTA), dilatometry and X-ray diffraction (XRD). Glass in both bulk and frit forms were produced by melting in platinum crucible at 1600 °C for 1-2 h. From variation of DTA peak maximum temperature with heating rate, the activation energies of crystallization were calculated to be 340 kJ mol-1 and 498 kJ mol-1 for first and second crystallization exotherms, respectively. Crystallization of bulk glass was carried out at various temperatures and for different time durations in the range of 850-1000 °C. The influence of the addition of TiO2 on the crystallization sequence of the glass was experimentally determined and discussed. © 2007.
Authors & Co-Authors
Goel, Ashutosh
Portugal, Aveiro
Ciceco – Instituto de Materiais de Aveiro
Shaaban, E. R.
Egypt, Cairo
Faculty of Science
Melo, F. C.L.
Brazil, Sao Jose Dos Campos
Comando Geral de Tecnologia Aeroespacial
Ribeiro, Manuel J.
Portugal, Viana do Castelo
Escola Superior de Tecnologia e Gestão
Ferreira, J. M. F.
Portugal, Aveiro
Ciceco – Instituto de Materiais de Aveiro
Statistics
Citations: 120
Authors: 5
Affiliations: 4
Identifiers
Doi:
10.1016/j.jnoncrysol.2007.04.008
ISSN:
00223093