Linked Life Data

15120302

Source:http://linkedlifedata.com/resource/pubmed/id/15120302

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2004-5-3
pubmed:abstractText
The rheological properties of aqueous ceria dispersions are studied experimentally. In particular, the effects of particle concentration, temperature, pH, and ionic strength are discussed. If the volume fraction is below 2%, ceria slurry exhibits Newtonian behavior, and for higher volume fractions, shear-thinning behavior is observed. The effect of temperature on the behavior of ceria slurry is found to be pH-dependent. If pH<IEP, IEP being the isoelectric point, the viscosity of the ceria slurry decreases as temperature increases, though the temperature effect is inappreciable in the range of 28 to 50 degrees C. On the other hand, if pH>IEP, the viscosity slightly increases with increased temperature. A shift of IEP to a higher value of pH was observed for ionic strength, even for indifferent electrolytes. The influence of pH on the rheological properties of ceria slurry decreases if the ionic strength is high. The pH at which viscosity and yield stress are maximum coincide with IEP only for low ionic strengths. The slopes of acidic and basic branches of viscosity against pH and yield stress against pH curves are not symmetrical at high ionic strength, and the alkaline branch deviates significantly from Hunter's theory.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jun
pubmed:issn
0021-9797
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
274
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
277-84
pubmed:dateRevised
2009-11-11
pubmed:year
2004
pubmed:articleTitle
An experimental study on the rheological properties of aqueous ceria dispersions.
pubmed:affiliation
Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan. jphsu@ntu.edu.tw
pubmed:publicationType
Journal Article