Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8047184 | Applied Clay Science | 2013 | 4 Pages |
Abstract
Crack formation patterns in Laponite gel are known to be strongly affected by electric fields produced by a DC (direct current) source. It can be shown that AC (alternating current) fields produce equally remarkable patterns in a radially symmetric set-up. The character of the pattern depends crucially on the field strength. A significant feature observed is the bending of radial cracks, with the curvature increasing as field strength is increased. Voltages of 20 to 70Â V have been applied and several features of the resulting patterns quantified. Striations on the fracture surfaces and crack speeds are also studied.
Keywords
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Authors
Tajkera Khatun, Tapati Dutta, Sujata Tarafdar,