Diffusion of water in bentonite clay: Neutron scattering study

dc.contributor.author	Sharma, V.K.
dc.contributor.author	Prabhudesai, S.A.
dc.contributor.author	Raut-Dessai, R.
dc.contributor.author	Desa, J.A.E.
dc.contributor.author	Mitra, S.
dc.date.accessioned	2015-06-04T04:09:33Z
dc.date.available	2015-06-04T04:09:33Z
dc.date.issued	2013
dc.identifier.citation	AIP Conf. Proc. 2013; 918-919.	en_US
dc.identifier.uri	http://dx.doi.org/10.1063/1.4791339
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/3005
dc.description.abstract	Diffusion of water confined in natural bentonite clay is studied using the quasi-elastic neutron scattering (QENS) technique. X-ray diffraction shows a well-defined crystalline structure of the clay with an interlayer spacing of 13 Angstrom. The QENS experiment has been carried out on hydrated as well as dehydrated clay at 300 K. Significant quasi-elastic broadening was observed in case of hydrated bentonite clay whereas dehydrated clay did not show any broadening over the instrument resolution. Analysis of QENS data reveals that diffusion of water occurs through jump diffusion characterized by random distribution of jump lengths. Diffusion of water in clay is found to be hindered vis a vis bulk water.	en_US
dc.subject	Physics	en_US
dc.title	Diffusion of water in bentonite clay: Neutron scattering study	en_US
dc.type	Conference article	en_US