Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Tajkera Khatun"'
Publikováno v:
Frontiers in Physics, Vol 7 (2019)
In our study we report on some of the novel properties of a square lattice filled with white sites, randomly occupied by black sites (with probability p). We consider connections up to the second nearest neighbors, according to the following rule. Ed
Externí odkaz:
https://doaj.org/article/78bebcbe88e74300aef4fd6836960746
Publikováno v:
Frontiers in Physics, Vol 7 (2019)
We report some novel properties of a square lattice filled with white sites, randomly occupied by black sites (with probability $p$). We consider connections up to second nearest neighbours, according to the following rule. Edge-sharing sites, i.e. n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f92d8557bd0f1e96cd3338577555de60
Publikováno v:
Indian Journal of Physics. 90:1355-1366
A randomized spring-network model is proposed to simulate crack patterns in drying aqueous solution of Laponite in the presence of a radial inhomogeneous direct current (DC) and alternating current (AC) electric field. The simulation model produces r
Autor:
Sudeshna Sircar, Sujata Tarafdar, Sanat Karmakar, Moutushi Dutta Choudhury, Tapati Dutta, Shantanu Das, Somasri Hazra, Tajkera Khatun, Abhra Giri
Publikováno v:
RSC Advances. 6:64297-64305
We report observation of wavy cracks and naturally patterned fracture surfaces in drying LAPONITE® paste. Desiccation cracks are shown to follow undulating, corrugated paths even when the speed of crack propagation is lower than the sound velocity i
Publikováno v:
The European Physical Journal B. 90
We describe the Island-Mainland (IM) transition on a square lattice. Black squares are randomly dropped on a white background, with increasing concentration p. We define black (white) clusters as groups of black (white) squares, connected through edg
Publikováno v:
Applied Clay Science. 86:125-128
Crack formation patterns in laponite gel are known to be strongly affected by DC electric fields. We show that AC fields produce equally remarkable patterns in a radially symmetric set-up. The character of the pattern depends crucially on the field s
Publikováno v:
Materials Research Express. 6:026305
We report desiccation crack formation on a layer of aqueous Laponite® RD gel, exposed to a uniform static electric field varying from 357 to 928 V m−1. The cracks formed exhibit an interesting tree-like pattern. A large number of cracks (~70) appe
Publikováno v:
Journal of Physics Communications. 2:055023
We present a study of patterns, formed in drying drops of aqueous gelatin solution containing sodium sulphate. The patterns are highly complex, consisting of a hierarchical sequence of rings which form concentric bands as well as dendritic crystallin
Topology of desiccation crack patterns in clay and invariance of crack interface area with thickness
Publikováno v:
The European physical journal. E, Soft matter. 38(8)
We study the crack patterns developed on desiccating films of suspensions of three different clays—bentonite, halloysite nanoclay and laponite on a glass substrate. Varying the thickness of the layer, h gives the following new and interesting resul
Publikováno v:
Langmuir : the ACS journal of surfaces and colloids. 29(50)
When a colloidal gel dries through evaporation, cracks are usually formed, which often reveal underlying processes at work during desiccation. Desiccating colloid droplets of a few hundred microliters size show interesting effects of pattern formatio