Researchers at the University of California, Berkeley (UC Berkeley) and Germany's Albert Ludwig University have developed a three-dimensional printing process for glass microstructures.
The method expands on a process previously developed by the researchers called computed axial lithography (CAL) to print finer features and in glass.
The researchers used a special resin material containing nanoparticles of glass surrounded by a light-sensitive binder liquid.
The binder is solidified by digital light projections from the printer and removed when the printed object is heated and the particles are fused into a solid object of pure glass.
UC Berkeley's Hayden Taylor said the new "micro-CAL" system method "can print objects in polymers with features down to about 20 millionths of a meter, or about a quarter of a human hair's breadth" and "into glass, with features down to about 50 millionths of a meter."
From University of California, Berkeley
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