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Exploitation of thermophoresis effect to prevent re-deposition of expelled particulates in laser assisted surface cleaning
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10.1063/1.4759171
/content/aip/journal/jap/112/8/10.1063/1.4759171
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/8/10.1063/1.4759171

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the experimental cell used for studying the effect of thermophoresis towards prevention of re-deposition of expelled particulates following laser cleaning.

Image of FIG. 2.
FIG. 2.

(a) A typical unirradiated bare SS surface at a magnification of 500. (b) A typical representative area of an unirradiated surface of SS deposited with CuTe sub-micron sized particulates at a magnification of 500. (c) Histogram depicting the size distribution (in μm) of these deposited particulates.

Image of FIG. 3.
FIG. 3.

Surface of SS with CuTe nanoparticles after one laser exposure under ambient conditions indicating the extent of re-deposition occurring.

Image of FIG. 4.
FIG. 4.

(a) CuTe on SS exposed to one laser exposure under the action of thermophoresis. In the inset is shown the particle count measurements of the re-deposited particulates (encircled green regions) using the measurement program feature of microscopy. (b) CuTe on SS exposed to two laser exposures under the action of thermophoresis.

Image of FIG. 5.
FIG. 5.

(a) CuTe deposited on SS after one laser exposure in vacuum. (b) CuTe on SS after two laser exposures in vacuum.

Image of FIG. 6.
FIG. 6.

Particle size distribution of CuTe on SS exposed to one laser pulse under ambient, thermophoresis, and vacuum conditions.

Image of FIG. 7.
FIG. 7.

CuTe nanoparticle size distribution (in μm) deposited on SS after two laser exposures under ambient, thermophoresis, and vacuum conditions.

Tables

Generic image for table
Table I.

Particle number measurements of re-deposited particulates following decontamination at different operating conditions using measurement program feature in microscopy.

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/content/aip/journal/jap/112/8/10.1063/1.4759171
2012-10-17
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Exploitation of thermophoresis effect to prevent re-deposition of expelled particulates in laser assisted surface cleaning
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/8/10.1063/1.4759171
10.1063/1.4759171
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