Chemical reaction induced solution transfer indentation

Left: Experimental set up (vessel about 3 cm in cross section). Right: Side view taken in situ under the microscope. Piston diameter is 0.5 mm. Note development of hydrogen gas bubbles at right end of the piston and undercutting clearly visible at the right end. Hydrogen gas develops during the oxidation of the metal piston.

Left: Top view of indented crystal after experiment. Hole is about 1 mm in diameter. In the center of the hole a small pillar is visible. This pillar supported the piston during the experiment. Right: Magnification of the central pillar. Pillar has a diameter of a few hunderd mikrometer. Note cataclastic deformation of pillar and fractures in the crystal.

[abstract] [abstract-2].

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19 June 2000