Fabrication of (Bi)(BiTe) superlattice films by Te desorption from a pristine BiTe film

Kusaka, Shotaro*; Sasaki, Taisuke*; Sumida, Kazuki; Ichinokura, Satoru*; Ideta, Shinichiro*; Tanaka, Kiyohisa*; Hono, Kazuhiro*; Hirahara, Toru*

Applied Physics Letters, 120(17), p.173102_1 - 173102_5, 2022/04

https://doi.org/10.1063/5.0090207

Formation behavior of Cr-rich phase in Fe-Cr-Al alloys under ion irradiation

Abe, Yosuke; Sasaki, Taisuke*; Yamashita, Shinichiro; Okubo, Nariaki; Ukai, Shigeharu

no journal, , 

In Fe-Cr-Al alloys, which are being developed as accident-resistant fuel cladding for light water reactors, it is a challenge to accurately predict the precipitation behavior of the Cr-rich embrittlement phase ( phase), which occurs at relatively low temperature irradiations. However, the formation behavior of the phase under neutron irradiation is not well understood due to global limitations of irradiation reactors. In this study, the influencing factors (Cr concentration, Al concentration, and damage rate) on phase formation were quantitatively evaluated by combining systematic irradiation experiments for 14 types of alloys at three levels of damage rate and multiple regression analysis. The results also contributed to the development of more accurate /(+) phase boundary curves based on Cr and Al concentrations, which are important in actual alloy design.