title: Rapid laser sintering of metal nano-particles inks.
abstract: Fast sintering is of importance in additive metallization processes and especially on sensitive substrates. This work explores the mechanisms which set limits to the laser sintering rate of metal nano-particle inks. A comparison of sintering behavior of three different ink compositions with laser exposure times from micro-seconds to seconds reveals the dominant factor to be the organic content (OC) in the ink. With a low OC silver ink, of 2% only, sintering time falls below 100 μs with resistivity <×4 bulk silver. Still shorter exposure times result in line delamination and deformation with a similar outcome when the OC is increased.
authors: Additive Manufacturing Lab, Orbotech Ltd PO Box 215, Yavne 81101, Israel.
authors: Oleg
authors: O
authors: Ermak
authors: Michael
authors: M
authors: Zenou
authors: Gil Bernstein
authors: GB
authors: Toker
authors: Jonathan
authors: J
authors: Ankri
authors: Yosi
authors: Y
authors: Shacham-Diamand
authors: Zvi
authors: Z
authors: Kotler