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Effects of Melting Conditions on Cerium oxidation state and Catalytic Behavior on Cerium Phosphate Glasses
세륨 인산염계 유리에서 세륨의 산화수와 촉매특성에 대한 용융조건의 영향
Ju-Hyeong Kim, Dae-Sung Kim, Bong-Ki Ryu
김주형, 김대성, 류봉기
Korean J. Met. Mater. 2017;55(2):144-149.   Published online 2017 Feb 2
DOI: https://doi.org/10.3365/KJMM.2017.55.2.144

As with any solvent, stabilizing a multivalent element at a given oxidation level in the glass depends on the thermodynamic conditions. The effects of temperature in the oxidation-reduction equilibrium have been previously noted with higher temperatures being conductive to reduced states. 30Ce2O-70P2O5 binary system glasses were prepared. The effects of..... More

Material Analysis & Characterization
Study of Water Resistance of Fe<sub>2</sub>O<sub>3</sub> Doped P<sub>2</sub>O<sub>5</sub>ZnOBi<sub>2</sub>O<sub>3</sub> Sealing Glass System
Moon Kyung Hwang, Il Gu Kim, Bong Ki Ryu
Korean J. Met. Mater. 2016;54(8):621-625.   Published online 2016 Aug 5
DOI: https://doi.org/10.3365/KJMM.2016.54.8.621

In order to strengthen the structure of the glass and ultimately improve its water resistance, P2O5–ZnO–Bi2O3 was doped with Fe2O3, which generated Fe ions in the phosphate-based glass. These ions constitute (P2O7)−4 groups within the glass network. Structural analysis using Fourier transfer infrared spectroscopy indicated that P-O-P and Bi-O-P bonds..... More

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