Abstract
Laser graving of lines and characters was studied on alumina (Al2O3), zirconia (ZrO2) and silicon carbide (SiC) substrates to apply it to prolonged record conservation media. Graved lines were not clear on alumina and zirconia substrates, whereas on a SiC board, they were clearly identified by optical observation. Characters were graved on SiC substrates, and the stability of their visibility was investigated by thermal and chemical corrosion examinations. In high-temperature corrosion examination of the graved SiC, the visibility of characters decreased after 1 week, but no more changes were subsequently observed. In chemical corrosion examination, the visibility was remarkably degraded in concentrated alkaline solution, but not changed in acid and diluted alkaline solutions.
Original language | English |
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Pages (from-to) | 328-332 |
Number of pages | 5 |
Journal | journal of nuclear science and technology |
Volume | 45 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2008 Apr |
Externally published | Yes |
Keywords
- Aluminum oxide
- Geological disposal
- Laser graving
- Record conservation
- Silicon carbide
- Zirconium oxide
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering