Influence of ambient gas pressure on laser induced metal ablation
β Scribed by Yu. Chivel; V. Nasonov
- Publisher
- Elsevier
- Year
- 2010
- Tongue
- English
- Weight
- 314 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1875-3892
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β¦ Synopsis
In the paper the results of investigations of metal surface destruction , plasma formation and evolution on exposure to quasi-continuous pulsed laser under high pressure (up to 1.6 MPa) of ambient nitrogen are presented.
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The ablation rate expressed as the amount of removed material per laser shot was calculated for pure metal samples under different experimental conditions: laser fluence (1.3-16.7 J cm -2 ), buffer gas (air, He and Ar) and gas pressure (10 3 -10 -5 mbar). Fluence values covered the range between the