[G] Alloys, Amorphous and Quasicrystals

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)

[232] Effects of Trace Metal Elements on the Intermediate-Range Order and Dissolution Properties of Amorphous Silicate

○Haruki Itakura¹, Isamu Hashitaka¹, Kaito Adachi², Kousuke Egusa², Koshi Yamada², Yoshinori Ohmasa², Koji Ohara², Motoaki Morita¹ (1. Tokyo Univ. of Marine Sci. & Technol., 2. Shimane Univ.)

Keywords:

Amorphous silicate,Dissolution,Reverse Monte Carlo,Total scattering,Intermediate-range order

The dissolution resistance of amorphous silica and silicates is enhanced by the incorporation of metals such as Al and Fe. To clarify the mechanism, the intermediate-range order of amorphous silicates was analyzed using RMC modeling. Metal incorporation promoted large-membered ring formation, which may enhance dissolution resistance.