The influence of processing parameters on morphology and granulometry of a wet-milled sol-gel glass powder
authors Ben-Arfa, BAE; Salvado, IMM; Pullar, RC; Ferreira, JMF
nationality International
journal CERAMICS INTERNATIONAL
author keywords Powder; Heat treatment temperature; Wet ball milling; Particle size distribution; Nitrogen adsorption isotherms
keywords CALCINATION TEMPERATURE; PHOTOCATALYTIC ACTIVITY; PHASE-TRANSFORMATION; WEIGHT RATIO; CERAMICS; BALL; MICROSTRUCTURE; PERFORMANCE; HYDROLYSIS; REDUCTION
abstract A quaternary bioactive sol-gel glass of high silica content was heat treated at different temperatures, and then wet ball milled under different balls-to-powder ratios. A total of sixteen experiments were performed to study in detail the effects of both experimental variables on the structure, morphology, particle size distributions and nitrogen adsorption isotherms. The balls-to-powder ratio exerts a tremendous influence on the final particle size distribution of the powders, while its effects on the pore volume and morphology are minimal. These structural features are mostly governed by the changes in calcination temperature. Therefore, understanding the specific roles of each experimental parameter is of paramount importance towards achieving optimum powders with the desired properties. This work sheds light on the importance of using a suitable combination of these two parameters for tuning the morphology and the granulometry of the sol-gel derived bioactive glass powders.
publisher ELSEVIER SCI LTD
issn 0272-8842
year published 2018
volume 44
issue 11
beginning page 12754
ending page 12762
digital object identifier (doi) 10.1016/j.ceramint.2018.04.080
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000436351700109
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journal impact factor (jcr 2016): 2.986
5 year journal impact factor (jcr 2016): 2.814
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