Title :
Surface modification of molybdenum by soft X-ray beams
Author :
Baksht, T.Yu. ; Korotaev, A.D. ; Pochivalov, Yu.I. ; Fedyunin, A.V.
Author_Institution :
Siberian Physicotech. Inst., Tomsk, Russia
fDate :
June 29 1997-July 2 1997
Abstract :
The changes in the structure-phase state of the surface layer of molybdenum caused by the action of a soft-X-ray beam of energy density E<9 J/cm/sup 2/ and pulse duration 0.1 /spl mu/s were investigated by the methods of optical metallography, scanning and transmission electron microscopy. It has been found that the action of a soft X-ray beam causes the surface under irradiation to melt, produces thin films of complex-composition amorphous phases, and increases (almost doubles) the microhardness of the surface layer. The irradiation with soft X-rays has been demonstrated to be highly efficient method for enhancing the performance of materials and article. This method allows surface modification modes which, preserving the surface condition, preclude, in particular, crater formation, surface melting, etc.
Keywords :
X-ray effects; molybdenum; surface phase transformations; surface structure; transmission electron microscopy; 0.1 mus; Mo; complex-composition amorphous phases; crater formation; microhardness; soft X-ray beams; structure-phase state; surface layer; surface melting; surface modification; Electron beams; Electron optics; Optical microscopy; Optical pulses; Particle beams; Rough surfaces; Scanning electron microscopy; Surface resistance; Surface treatment; Transmission electron microscopy;
Conference_Titel :
Pulsed Power Conference, 1997. Digest of Technical Papers. 1997 11th IEEE International
Conference_Location :
Baltimore, MA, USA
Print_ISBN :
0-7803-4213-5
DOI :
10.1109/PPC.1997.674650
