窒素雰囲気中で作製したCeO_2-Al_2O_3-SiO_2ガラスの性質

概要

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Properties of (20-30) mol% Ce0_2 (16-23) mol% Al_20_3 (47-62) mol% Si0_2 glasses prepared in an atmosphere of N_2 have been investigated. Experimental results showed that the glass transformation temperature, dilatonretric softening temperature and transmittance in the visible region decrease with increasing ceriacontent; and that the thermal expansion coefficient and microhardness increase with increasing ceriacontent. The cerousions in ceriurn aluminosilicate glasses ex hibited a broad fluorescence spectrum with a large Stoke shift at 450 nm from the excitation spectrum peak of 366 nm. The fluorescence peaks shifted to the shorter wavelength but cutoff wavelength of ultravio let spectra shifted to the longer wavelength as cerium aluminosilicate glasses were prepared in air instead of in N_2 for the specimen of the same composition.
社団法人日本セラミックス協会の論文
1995-12-01