2014年10月
Fracto-mechanoluminescence from ruby and Cr doped spinel in cutting, grinding and polishing processes
JOURNAL OF LUMINESCENCE
- ,
- ,
- 巻
- 154
- 号
- 開始ページ
- 511
- 終了ページ
- 514
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.jlumin.2014.05.037
- 出版者・発行元
- ELSEVIER SCIENCE BV
Red colored bright visible light fracto-mechanoluminescence was observed successfully from ruby (Cr doped Al2O3) and Cr doped spinel (Cr doped MgAl2O4) crystals in mechanical processes such as cutting, grinding and polishing. Fracto-mechanoluminescence spectra from ruby (peaking at lambda=696 nm) and Cr doped spinel (peaking at lambda=693 nm) perfectly agree with those of photoluminescence (PL) from Cr3+ ions in ruby and spinal crystals, respectively. In the grinding and polishing processes, peak intensities and peak wavelength of fract-mechanoluminescence from ruby and Cr doped spinel crystals varies with roughness (grain size, #) of the diamond disk. Fracto-mechanoluminescence is expected to be used in the in-situ evaluation of fracture of crystals in cutting, grinding and polishing for highly precise mechanical processes. (C) 2014 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.jlumin.2014.05.037
- ISSN : 0022-2313
- eISSN : 1872-7883
- J-Global ID : 201402218843829110
- Web of Science ID : WOS:000340687600079