Preparation and microstructure of bluish glass

S. Murase, A. Kaminaga, H. Uenishi, R. Maki, T. Fujii, M. Takano, Y. Kusano

Bluish glass was successfully prepared by mixing oxides and carbon as a reductant into the starting materials, whereas the addition of only -Fe 2 O 3 into the glass raw materials provided greenish glass. The chemical state of the iron ions in the glass was likely modified from Fe 3+ to Fe 2+ by the reducing atmosphere caused by carbon during the heating process. Mössbauer spectra and spectrophotometric measurements indicated that the bluish glass contained a high proportion of Fe 2+ (67.4%) and mainly absorbed visible light with wavelengths longer than
500 nm.

WORLD PM2024 Proceedings

J. Jpn. Soc. Powder Powder Metallurgy

72

S1654

S1657

doi.org/10.2497/jjspm.16P-T22-01