Laser graving of characters on ceramic substrates and change in visibility in corrosive environments

Teiichi Kimura, Takashi Goto, Keiichi Tsujimoto, Jin Ohuchi

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)328-332
Number of pages5
Journaljournal of nuclear science and technology
Volume45
Issue number4
DOIs
Publication statusPublished - 2008 Apr

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

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