Room-temperature deintercalation and self-extrusion of Ga from Cr2GaN.

Barsoum, MW; Farber, L · Science · 1999

basic_science · Level V

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Abstract

Bulk samples of the layered ternary nitride Cr2GaN were observed to extrude filaments of pure elemental gallium at room temperature. This self-extrusion phenomenon is best described as a room-temperature deintercalation of gallium from the basal planes of porous Cr2GaN samples. The extruded filaments are single crystals with 2- to 100-micrometer diameters and can be several centimeters long.