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Pulsed Laser Micromachining of Yttria‐Stabilized Zirconia Dental Ceramic for Manufacturing
Author(s) -
Dear Fraser C.,
Shephard Jonathan D.,
Wang Xin,
Jones Julian D. C.,
Hand Duncan P.
Publication year - 2008
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2008.02203.x
Subject(s) - materials science , machining , ceramic , millisecond , surface micromachining , laser , cubic zirconia , yttria stabilized zirconia , laser beam machining , laser drilling , optoelectronics , composite material , drilling , optics , metallurgy , laser beams , medicine , physics , alternative medicine , pathology , astronomy , fabrication
We describe the machining of a zirconia ceramic with millisecond pulses at 1064 nm (Nd:YAG) and present techniques that allow this material to be processed effectively. We show experimentally that due to the thermal expansion rate and absorption of the material, laser machining processes such as drilling and milling can critically fail in the millisecond regime. Results are also presented indicating that the phase structure of the bulk material postmillisecond‐processing remains largely unmodified. Furthermore, we show that the addition of a nanosecond system to the process confers not only flexibility but the capability of precision machining at 1064 nm.