Preparation of transparent CaF2 sintered bodies by a colloidal process and application to luminescent materials

DOI

Bibliographic Information

Other Title
  • コロイドプロセスによるCaF<sub>2</sub>透明焼結体の作製と蛍光体への応用

Description

Transparent sintered bodies of CaF2, which has very high abbe constant, were made by a colloidal process. The sintered bodies were made through preparation of CaF2 particles by the wet chemical process, pressing with metal-dies, sintering in atmosphere, and HIP treatment in Argon. The refractive index and abbe constant were 1.43 and 95, respectively. The optical constants were equivalent to ones of single crystal of CaF2. The transmittance was lower than the single crystal in the wavelength range of UV, and equivalent in the wavelength range of IR. CaF2 was obtained by the present simple process as well as the conventional method of the single crystal. Eu or Tb ions were doped in the sintered body as activators maintaining the transparency. The application to transparent luminescent materials is expected.

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Details 詳細情報について

  • CRID
    1390282680592991360
  • NII Article ID
    130006973617
  • DOI
    10.14853/pcersj.2006f.0.173.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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