Atomic-scale observation of Σ5{310} and Σ9{411} grain boundaries in silicon steel. - Futazuka, Toshihiro; Arai, Masaki; Seki, Takehito; Matsubara, Ryo; Morishige, Nobusato; Ikuhara, Yuichi; Shibata, Naoya (Journal of Materials Science, 2025)