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Effect of milling time on the rheology of highly loaded aqueous-fused silica slurry

DSpace at IIT Bombay

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Title Effect of milling time on the rheology of highly loaded aqueous-fused silica slurry
 
Creator MOHANTA, K
BHARGAVA, P
 
Subject ceramics
 
Description The effects of milling time on the rheological behavior of 70-vol% loaded fused silica slurries were studied. A transition from shear thickening to shear thinning behavior was observed with milling time. Slurry viscosity and thixotropy attained a minimum after 18 h of milling and remained almost unchanged with additional milling. Infrared spectroscopy and particle surface charge measurements confirmed the development of increasing amount of surface hydroxide and surface charge respectively with progress in milling time, leading to shear thinning behavior. An initial static aging treatment of 24 h aided the development of silanol groups, indicating that the milling time can be reduced to save energy and time.
 
Publisher BLACKWELL PUBLISHING
 
Date 2011-07-19T03:43:27Z
2011-12-26T12:50:59Z
2011-12-27T05:37:15Z
2011-07-19T03:43:27Z
2011-12-26T12:50:59Z
2011-12-27T05:37:15Z
2008
 
Type Article
 
Identifier JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 91(2), 640-643
0002-7820
http://dx.doi.org/10.1111/j.1551-2916.2007.02153.x
http://dspace.library.iitb.ac.in/xmlui/handle/10054/5164
http://hdl.handle.net/10054/5164
 
Language en