Change search
ReferencesLink to record
Permanent link

Direct link
Complex behaviors of clay particles in air and CO2
Norwegian University of Science and Technology, Faculty of Natural Sciences and Technology, Department of Physics.
2011 (English)MasteroppgaveStudent thesis
Abstract [en]
ABSTRACT Part I The shear rheology of nano-clay particles when dispersed in liquid CO2 under elevated pressure using the Couette geometry is studied. A high pressure attachment with two different measuring systems - the double gap and Mooney systems - is used for this purpose. The clays are Laponite, Quick clay, Na-fluorohectorite and Na-montmorillonite. The shear viscosities of the dispersions are measured under increasing shear rates or shear stresses. In addition an ageing test is carried out for six days for a laponite-liquid CO2 dispersion. Inertia of the system is compensated for by control shear stress tests. Part II E-field induced chain formations of the nano-clay particles when dispersed in the air are recorded by a camera. A glove bag is prepared in such a way as to provide a Nitrogen atmosphere and the procedure is repeated in this glove bag. In both situations the chain formations are observed. An attempt to measure the leakage of current within the electrode is also made by means of an operational amplifier and feedback resistor, even though the measurement of the current is uncertain.
Place, publisher, year, edition, pages
Institutt for fysikk , 2011. , 113 p.
Keyword [no]
ntnudaim:6670, MSCONDMAT Condensed Matter Physics,
URN: urn:nbn:no:ntnu:diva-13336Local ID: ntnudaim:6670OAI: diva2:437482
Available from: 2011-08-29 Created: 2011-08-29

Open Access in DiVA

fulltext(60240 kB)299 downloads
File information
File name FULLTEXT01.pdfFile size 60240 kBChecksum SHA-512
Type fulltextMimetype application/pdf
cover(47 kB)50 downloads
File information
File name COVER01.pdfFile size 47 kBChecksum SHA-512
Type coverMimetype application/pdf

By organisation
Department of Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 299 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 55 hits
ReferencesLink to record
Permanent link

Direct link