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.
No takes yet. Share an insight, caveat, or question.
Barsoum et al. (1999) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: