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

29 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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T1 - Laser micromachining of zirconia (Y-TZP) ceramics in the picosecond regime and the impact on material strength

AU - Parry, Jonathan P.

AU - Shephard, Jonathan D.

AU - Hand, Duncan P.

AU - Moorhouse, Colin

AU - Jones, Nick

AU - Weston, Nick

PY - 2011/1

Y1 - 2011/1

N2 - 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.

AB - 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.

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DO - 10.1111/j.1744-7402.2009.02420.x

M3 - Article

VL - 8

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EP - 171

JO - International Journal of Applied Ceramic Technology

JF - International Journal of Applied Ceramic Technology

SN - 1546-542X

IS - 1

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