They sublime the aluminium directly, more details: https://iml.osu.edu/vaporizing-foil-actuator-tool-creating-lightweight-structures https://iml.osu.edu/vaporiz

They sublime the aluminium directly, more details: https://iml.osu.edu/vaporizing-foil-actuator-tool-creating-lightweight-structures https://iml.osu.edu/vaporizing-foil-actuator-tool-creating-l...