Structural order analysis of glass based on rings in a chemically-bonded network

Motoki Shiga; Akihiko Hirata; Yohei Onodera; Hirokazu Masai

Presentation information

Symposium (Oral)

Symposium » 【Onsite Only】Materials with Hyperordered Structures and their Applications

[16p-A404-1~11] 【Onsite Only】Materials with Hyperordered Structures and their Applications

Thu. Mar 16, 2023 1:30 PM - 6:00 PM A404 (Building No. 6)

Hirokazu Masai(AIST), Hitoshi Wakabayashi(Tokyo Tech), Kazuo Tsutsui(Tokyo Tech), Madoka Ono(Hokkaido Univ./AGC), Koichi Hayashi(Nagoya Inst. Tech.)

5:45 PM - 6:00 PM

[16p-A404-11] Structural order analysis of glass based on rings in a chemically-bonded network

〇Motoki Shiga^1,5, Akihiko Hirata^2,6, Yohei Onodera^3,6, Hirokazu Masai⁴ (1.Tohoku Univ., 2.Waseda Univ., 3.Kyoto Univ., 4.AIST, 5.RIKEN, 6.NIMS)

Keywords:glassy material, intermediate-range order

While atomic arrangements in crystals have a long-range order, those of glassy materials seem to be completely random at first glance, but they have an intermediate-range order, which are observed by peaks of X-ray and neutron diffraction experiments. Therefore, the identification of the origin of such structural order and mathematical descriptions of the structural order are an important issue. This talk introduces our developed quantitative evaluation methods of structural order based on the shape of rings and spatial local correlation around rings in chemically-bonded networks. This talk also demonstrates analysis results of various material structures.