Development of Materials Informatics Platform

Orii, Yasumitsu; Hirose, Shuichi; Toda, Hiroki; Kobayashi, Masakazu

doi:10.23919/panpacific48324.2020.9059449

Cited by 1 publication

(1 citation statement)

References 2 publications

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“…The development of soft magnetic materials exhibiting high frequency and low heat resistance to operate as power device systems is also important [5][6][7]. To accelerate the development of materials with multiple properties, the screening of new materials is performed at a high speed using material informatics (MI) based on information technology [8][9][10][11]. Next steps involving the rapid fabrication of materials screened using MIs and their measurements and evaluations are required.…”

Section: Introductionmentioning

confidence: 99%

Kerr effect microscope combined with a pulse magnet to observe high-entropy alloys fabricated using combinatorial technology

Yagyu

Mitsui

Chikyow

et al. 2021

Science and Technology of Advanced Materials: Methods

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We developed a module-type two-dimensional (2D) polar Kerr effect microscope using a pulse magnet with a pulse width of 13 ms and a maximum magnetic field of 7 kOe to accelerate the development of new soft magnetic materials. We also developed an algorithm and method to extract still images from a measurement movie file when the pulse magnetic field is applied. To evaluate the performance of this instrument, we measured high-entropy alloys based on FeCoMn samples, which were screened and selected using material informatics. Samples obtained through depositing Pt, Zn, Cu, and Ru on high-entropy FeCoMn alloys exhibited a brightness distribution proportional to the Kerr rotation angle in the applied magnetic field. The developed instrument enabled the high-speed magnetic field mapping of composition-spread thin films and is expected to accelerate new material development.

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