Laser micromachining of zirconia (Y-TZP) ceramics in the picosecond regime and the impact on material strength

Jonathan P. Parry; Jonathan D. Shephard; Duncan P. Hand; Colin Moorhouse; Nick Jones; Nick Weston

doi:10.1111/j.1744-7402.2009.02420.x

Laser micromachining of zirconia (Y-TZP) ceramics in the picosecond regime and the impact on material strength

Jonathan P. Parry, Jonathan D. Shephard, Duncan P. Hand, Colin Moorhouse, Nick Jones, Nick Weston

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

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. © 2009 The American Ceramic Society.

Original language	English
Pages (from-to)	163-171
Number of pages	9
Journal	International Journal of Applied Ceramic Technology
Volume	8
Issue number	1
DOIs	https://doi.org/10.1111/j.1744-7402.2009.02420.x
Publication status	Published - Jan 2011

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title = "Laser micromachining of zirconia (Y-TZP) ceramics in the picosecond regime and the impact on material strength",

abstract = "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. {\textcopyright} 2009 The American Ceramic Society.",

author = "Parry, {Jonathan P.} and Shephard, {Jonathan D.} and Hand, {Duncan P.} and Colin Moorhouse and Nick Jones and Nick Weston",

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journal = "International Journal of Applied Ceramic Technology",

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Laser micromachining of zirconia (Y-TZP) ceramics in the picosecond regime and the impact on material strength. / Parry, Jonathan P.; Shephard, Jonathan D.; Hand, Duncan P.; Moorhouse, Colin; Jones, Nick; Weston, Nick.

In: International Journal of Applied Ceramic Technology, Vol. 8, No. 1, 01.2011, p. 163-171.

Research output: Contribution to journal › Article › peer-review

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AU - Jones, Nick

AU - Weston, Nick

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