ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The effect of formulation (filler’s kind and amount, liquid’s kind and concentrationrequired for granulation) and spheronization time on characterization of alumina based pelletsparameters (pellets size distribution, roundness and aspect ratio) were investigated. Two schemeswere successfully proofed by extrusion/spheronization. The mean volume particle diameter wasfound to have a profound effect on the formulation and processing parameters. Alumina powder withlarge mean volume particle diameter showed different mechanism of action with coupling agent.With the surface modification, the water required for granulation had decreased. The existing formaland kinematic velocity of the water had a direct effect on the processing parameter of the extrusionand spheronization. Spheronization time from 2 to 10 min had a pronounced effect on roundness andaspect ratio. No changes in roundness and aspect ratio were observed from 10 to 20 min ofspheronization time
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.44-46.361.pdf
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