Morphological instabilities in drying colloids

Kiatkirakajorn, Pree-cha

dc.contributor.advisor	Goehring, Lucas Dr.
dc.contributor.author	Kiatkirakajorn, Pree-cha
dc.date.accessioned	2018-10-15T09:51:11Z
dc.date.available	2018-10-15T09:51:11Z
dc.date.issued	2018-10-15
dc.identifier.uri	http://hdl.handle.net/11858/00-1735-0000-002E-E4C9-0
dc.identifier.uri	http://dx.doi.org/10.53846/goediss-7094
dc.language.iso	eng	de
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc	530	de
dc.title	Morphological instabilities in drying colloids	de
dc.type	doctoralThesis	de
dc.contributor.referee	Goehring, Lucas Dr.
dc.date.examination	2018-09-10
dc.subject.gok	Physik (PPN621336750)	de
dc.description.abstracteng	The crystallization of hard sphere colloidal dispersions show a variation of phase behaviours, as the volume fraction of colloidal dispersions increases, particles transform from a liquid to a crystal state, which two simple structures can be found close-packed and body-centred cubic crystals depending on the range of interaction forces. Here, we show a result of Small-Angle X-ray Scattering experiment of monomodal-sized colloidal dispersions. The phase diagram, structure factors and crystal peaks were analysed by the scattering pattern of X-ray. We found coexistences of complex crystal structures (two BCC structures and Laves AB2) for the small particle size, and complex crystal structures (BCC and FCC) for the larger particle size which is suggested by a fractionation among the particles. We further complete our suggestion through the numerical results which are able to explain how the fractionation occurs and how the particles distribute among them. Moreover, we investigated instabilities, shear banding and guiding cracks, which are a result of the structural anisotropy in the drying film.	de
dc.contributor.coReferee	Müller, Marcus Prof. Dr.
dc.subject.eng	colloids	de
dc.subject.eng	drying colloids	de
dc.subject.eng	instabilities	de
dc.subject.eng	colloidal dispersions	de
dc.subject.eng	crystallization	de
dc.subject.eng	SAXS	de
dc.subject.eng	phase diagram	de
dc.subject.eng	shear band	de
dc.subject.eng	cracks	de
dc.identifier.urn	urn:nbn:de:gbv:7-11858/00-1735-0000-002E-E4C9-0-9
dc.affiliation.institute	Fakultät für Physik	de
dc.identifier.ppn	103276922X

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Fakultät für Physik (inkl. GAUSS) [925]

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