Influence of dissolution of oxygen on absorption capability of a surface of tantalum

Author

Gagarin, A.P. ; Kohns, P. ; Makin, V.S.

Author_Institution

Federal Res. Inst. of Complex Testings of Opt.-Electron. Devices, Russia

fYear

2004

fDate

6-9 Sept. 2004

Firstpage

260

Lastpage

262

Abstract

This research shows the changes of the absorption ability of the surface of tantalum foil when it is heated by means of continuous-wave CO₂ laser in the air at temperature 600°C - 650°C. The absorption ability of the sample (when it was completely cooled down after the laser heating) is evaluated by measuring the slope angle of the foil surface temperature growth under the testing laser beam. This study also performed experiments where the heating of one sample is interrupted at definite period of time and the magnitude of absorption capacity is measured. The measurement of Wickers microhardness in surface districts which had undergone laser heating is also conducted.

Keywords

dissolving; heat treatment; laser materials processing; microhardness; oxygen; surface chemistry; tantalum; thermo-optical effects; 600 to 650 degC; CO₂; CO₂ laser; O₂; Ta; Wickers microhardness; absorption capability; continuous-wave laser; foil surface; laser heating; oxygen dissolution; slope angle; tantalum surface; Absorption; Goniometers; Heating; Laser beams; Laser transitions; Performance evaluation; Surface emitting lasers; Temperature; Testing; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Laser and Fiber-Optical Networks Modeling, 2004. Proceedings of LFNM 2004. 6th International Conference on

Print_ISBN

0-7803-8429-6

Type

conf

DOI

10.1109/LFNM.2004.1382483

Filename

1382483