Programme

P.70 -- Poster, VCTP-45

Date: Wednesday, 14 October 2020

Time: 08:30 - 10:00

Online presentation

Study on structural and elastic properties of interstitial alloy FeSi with B2 structure under pressure

Nguyen Quang Hoc1, Nguyen Duc Hien2, Nguyen Minh Hoa3, Dinh Cong Thanh1 and Vu Trang Linh1

1Faculty of Physics, Hanoi National University of Education, 136 Xuan Thuy, Cau Giay District, Hanoi, 2Mac Dinh Chi High School, Chu Pah District, Gia Lai province 3Faculty of Basic Sciences, Hue University of Medicine and Pharmacy, Hue University,6 Ngo Quyen, Hue city

The analytic expressions of the Helmholtz free energy, the cohesive energy, alloy parameters, mean nearest neighbor distance and elastic quantities such as the isothermal elastic modulus BT, the elastic moduli E, G, K and the elastic constants C11, C12, C44 for interstitial alloy AB with the B2 structure under pressure are derived from the statistical moment method. In limit case when the concentration of interstitial atoms is equal to zero, we obtain the elastic theory for the main metal A with the SC structure. The numerical calculations for the B2-FeSi are compared with available other calculations and experimental data. Keywords: B2 structure, interstitial alloys, statistical moment method

Presenter: Nguyen Minh Hoa

Presentation file: