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Proceedings Paper

Direct laser writing of conductive patterns in advanced ceramic materials
Author(s): Edmunds Tamanis; Guntis Liberts; Liga Berzina
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Paper Abstract

Investigations on the laser-induced reduction of advanced ceramic materials, including high-temperature supercondcutive (HTSC) ceramics, are presented. Here the oxygen content of the material is locally decreased by CW YAG:Nd laser irradiation in H2 atmosphere. Direct laser-written metallic stripes into the weakly conducting sample surface had been tested by standard 4-point-probe technique in He dewar. New data about resistance temperature dependences of 100% laser reduce dstripes of HTSC Y-Ba-Cu-O ceramics has been determined. Our experimental data are in good agreement with Matthiasen's law with respect ot laser-written electrodes as YCu3 alloys. As for high resistive stripes in HTSC ceramics begin written into the surface under imcomplete reduction regime we have found similar resistance behavior to random network of Cu fine particles connected 2D through thin oxide barriers. In the case of Bi-based HTSC ceramics a controversial picture takes place - low melting temperature of Bi oxide gives rise to segregation of Bi microspheres along the stripes corresponding to incomplete electroding. Although the laser-assisted surface alloying and metallization of bioceramics has been performed.

Paper Details

Date Published: 8 August 2003
PDF: 4 pages
Proc. SPIE 5123, Advanced Optical Devices, Technologies, and Medical Applications, (8 August 2003); doi: 10.1117/12.517001
Show Author Affiliations
Edmunds Tamanis, Daugavpils Univ. (Latvia)
Guntis Liberts, Daugavpils Univ. (Latvia)
Liga Berzina, Riga Technical Univ. (Latvia)

Published in SPIE Proceedings Vol. 5123:
Advanced Optical Devices, Technologies, and Medical Applications
Janis Spigulis; Janis Teteris; Maris Ozolinsh; Andrejs Lusis, Editor(s)

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