Rheological characterisation of water-based AlN slurries for the tape casting process
authors Olhero, SM; Ferreira, JMF
nationality International
journal JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
author keywords rheology; AlN; aqueous processing; tape casting
keywords ALUMINA; SUSPENSIONS; BINDERS; HYDROLYSIS; NITRIDE; POWDER
abstract In the present work rheological properties of aqueous concentrated AIN suspensions have been investigated in the presence of a sintering aid, deffloculant, binder and plasticizers, in order to screen the most suitable experimental conditions to obtain a good rheological behaviour for tape casting thick and non-cracked tapes with good flexibility. Suspensions exhibiting the desired shear thinning behaviour could be prepared. Adding binder and plasticizers did not change the shear thinning behaviour, but the viscosity revealed an increasing trend with increasing added amounts of binder. The flexibility was improved for the tapes derived from the more viscous suspensions containing higher amounts of binder. Crack free tapes having a maximum thickness of 1.5 mm, and with binder and plasticizer contents in the ranges of 10-15 wt.% and 5-10 wt.%, respectively, could be obtained. (c) 2005 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 0924-0136
year published 2005
volume 169
issue 2
beginning page 206
ending page 213
digital object identifier (doi) 10.1016/j.jmatprotec.2005.03.007
web of science category Engineering, Industrial; Engineering, Manufacturing; Materials Science, Multidisciplinary
subject category Engineering; Materials Science
unique article identifier WOS:000233249100012
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journal impact factor 4.669
5 year journal impact factor 4.799
category normalized journal impact factor percentile 80.792
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