List of records in nano database
IDs:
390
Authors : |
Lugomer,S.;Mihaljevic,B.;Pető,G.;Tóth,A.,L.;Horváth,E. |
Title : |
Spongelike metal surface generated by laser in the semiconfined configuration |
JournalName : |
Journal of Applied Physics |
PubDateYear : |
2005 |
PubDateOther : |
|
Volume : |
97 |
Issue : |
|
StartPage : |
1 |
EndPage : |
8 |
Keywords : |
|
Notes : |
|
Abstract : |
A porous surface of tantalum and molybdenum plates has been formed by a nanosecond laser-matter
interaction in the “semiconfined configuration,” in which the laser plasma is trapped between the
target and the transparent cover plate. The evolution of the plasma cloud and the pressure above the
surface induce a superheated state in the liquid surface layer. Explosion of the plasma disk and
formation of a cylindrical blast wave drive the superheated metastable fluid toward the spinodal, i.e.,
to the point of absolute thermodynamic instability. Phase explosion of a spinodal fluid occurs
through the cascade of bubblings and generates a very porous spongelike surface ,5–7 mm thick
sin some cases even ,10 mmd, which stays frozen permanently because of ultrafast cooling at the
end of the laser pulse. The total area of the porous surface is enlarged ,104 times at the microscale
range. At even larger magnification, a different, nanoscale-type porosity has been observed. |
HTML_Local : |
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HTML_Remote : |
http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JAPIAU000097000007073305000001&idtype=cvips&prog=normal |
Preprint_Local : |
http://www.nanotechnology.hu/reprint/JApplPhys_97_073305_Lugomer.pdf |
Preprint_Remote : |
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