Journal
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
Volume 8, Issue 1, Pages 163-171Publisher
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1744-7402.2009.02420.x
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Funding
- Engineering and Physical Sciences Research Council [GR/S12395/01, EP/F02553X/1] Funding Source: researchfish
- EPSRC [EP/F02553X/1] Funding Source: UKRI
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(accessed July 10, 2009).The capabilities of a high average power picosecond laser are assessed for micromachining yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) in its hard state. Laser machining of this material presents an attractive alternative to conventional machining techniques when precision customized parts are required due to the difficulty in machining Y-TZP in its hard state. Compared with previous nanosecond work the picosecond laser enables similar micromachining to be carried out at the same rate but with a superior surface finish and with no evidence of surface cracking. Strength measurements have been carried out using a four-point bend test rig and confirm that the improvement in surface quality translates to higher strength in machined components.
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