Sintering and devitrification of glass-powder compacts in the akermanite-gehlenite system
authors Reddy, AA; Tulyaganov, DU; Goel, A; Kapoor, S; Pascual, MJ; Ferreira, JMF
nationality International
journal JOURNAL OF MATERIALS SCIENCE
keywords SOLID-SOLUTION; ND3+-DOPED GLASSES; DIFFRACTION; MELILITES; BEHAVIOR
abstract The sintering and devitrification behavior of glass-powder compacts with four compositions, Ca2Mg0.5Al1.0Si1.5O7, Ca2Mg0.6Al0.8Si1.6O7, Ca2Mg0.7Al0.6Si1.7O7, and Ca2Mg0.8Al0.4Si1.8O7, corresponding to akermanite-gehlenite ratios (mol%) of 50/50, 60/40, 70/30, and 80/20 were investigated. Glass frits were prepared by the classical melt quenching technique in water. The structure of the glasses was investigated using FTIR and NMR, whereas the sintering behavior was studied by DTA and HSM. Sintering precedes crystallization only in Ca2Mg0.5Al1.0Si1.5O7 glass while in the remaining glass compositions maximum densification was achieved slight after the onset of crystallization. However, the ratios of final area/initial area (A/A (0)) of the glass-powder compact ranging from 0.63 to 0.66 imply towards good densification levels (95-98 %) achieved in the investigated glasses. Qualitative and quantitative XRD analyzes were performed in glass-powder compacts heat treated at 900 and 1000 A degrees C. Merwinite was found to crystallize first followed by decomposition at higher temperatures to form akermanite-like phase.
publisher SPRINGER
issn 0022-2461
year published 2013
volume 48
issue 11
beginning page 4128
ending page 4136
digital object identifier (doi) 10.1007/s10853-013-7225-9
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000316688700028
file j_mater_sci_48_2013_4128_4136.pdf
  ciceco authors
  impact metrics
journal analysis (jcr 2017):
journal impact factor 2.993
5 year journal impact factor 2.733
category normalized journal impact factor percentile 70.702
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg