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US 12,384,728 B2Granted
Ultrafast laser welding of ceramics
AssigneeThe Regents of the University of California
InventorsGuillermo Aguilar-Mendoza, Javier E. Garay, Elias Penilla
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Abstract
Ceramic welding methods and welded articles are disclosed. The present disclosure shows that transparent and diffuse ceramics can be successfully joined using lasers. The diffuse ceramic welding can be aided by introducing a small gap for optical penetration while no gap is necessary in the transparent ceramics case. Laser welding is more versatile on transparent ceramics since one can focus through the material allowing the joining of more complex geometries and over multiple interaction zones, increasing the ultimate weld volumes.
Claims7
A method, comprising:
- placing a first ceramic component adjacent to a second ceramic component to form an interface surface;
- focusing a laser within an exposed seam of the interface surface;
- tuning both a linear absorption property and a non-linear absorption property of the first ceramic material prior to welding using an annealing process;
- and
- welding the first ceramic component to the second ceramic component at a localized region within, and spaced apart from the exposed seam of the interface surface using localized heating from the laser.
2 more elements
Dependencies are inferred from the claim text.