Spectroscopic characteristics of natural fluorite induced by electron-beam irradiation
- Authors
- Kim, Mihyun; Yoon, Yongsub; Kang, Minkyung; Shin, Dongwook
- Issue Date
- Oct-2012
- Publisher
- KOREAN ASSOC CRYSTAL GROWTH, INC
- Keywords
- Natural fluorite; Electron-beam irradiation; F-center
- Citation
- JOURNAL OF CERAMIC PROCESSING RESEARCH, v.13, no.5, pp.541 - 546
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF CERAMIC PROCESSING RESEARCH
- Volume
- 13
- Number
- 5
- Start Page
- 541
- End Page
- 546
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/164585
- DOI
- 10.36410/jcpr.2012.13.5.541
- ISSN
- 1229-9162
- Abstract
- Naturally synthesized fluorite crystals were investigated in terms of their spectroscopic characteristics to indentify the origin of their colors and dynamics of color variation induced by electron-beam irradiation. Specimens with various colors and shades categorized into four groups were irradiated by an electron beam with two different power densities and subsequently heat-treated at various temperatures and times to investigate the kinetics of the color change process. Various aspects of spectroscopic characteristics before/after e-beam irradiation and heat treatment were analyzed by comparative studies by a UV-V is spectrophotometer, a Fourier transforminfrared spectrometer, an X-ray fluorescence spectrometer, X-ray diffraction, and a photoluminescence spectrometer. The variety of color groups of natural fluorite samples were confirmed to be caused by various defects and F-centers generated by e-beam irradiation.
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