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A new ceramic welding technology developed by engineers at the University of California, San Diego and the University of California, Riverside uses a series of short, ultrafast laser pulses to melt ceramic materials along the interface between two ceramic parts and fuse them together. Heat builds up only at the interface, so the melting is localized. The researchers call their method “ultrafast pulsed laser welding.”
Laser-welded ceramic assembly consisting of a transparent cylindrical cap joined to a ceramic tube. Courtesy of Garay lab/UC San Diego Jacobs School of Engineering.
To make this approach work, the researchers had to optimize the laser parameters (exposure time, number of laser pulses, and duration of…