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Photo-induced micro-actuation in the disordered magnetic alloys and a prototype model of application

Students & Supervisors

Student Authors
Md. Ashifur Rashid Fahim
BSc in Computer Science & Engineering, FST
Maliha Mostakim Mithe
BSc in Computer Science & Engineering, FST
Omar Faruk
BSc in Computer Science & Engineering, FST
Supervisors
Dr. Md. Sarowar Hossain
Assistant Professor, Faculty, FST
Dr. Humayra Ferdous
Associate Professor, Department Head, FST

Abstract

This investigation aims to study the structural properties and photo-induced micro-actuation (PIMA) effect in a Co-Ni-Al ferromagnetic shape memory alloy (FSMA) and a Finemet® alloy with the composition Fe73.5Cu1Nb3Si13.5B9. The unexplored PIMA properties of these two ferromagnetic systems have opened the scope of a laser-controlled micro-mechanical engineering application producing useful surgical tools for medical applications. The ribbon-shaped alloys of ~6mm width and 20 to 22 µm thickness were synthesized by the rapid quenching of solid solutions with chilling rates of 105-106 K/s. The samples were then annealed at 600℃ for 30 minutes, and the crystalline grains were dispersed in the residual amorphous matrix. The structures of the synthesized samples were studied by X-ray diffraction and field emission scanning electron microscopy, and the magnetic properties of the samples were obtained by a vibrating sample magnetometer at 300K. The PIMA effect of the studied samples was observed under the application of a blue laser of 450nm wavelength, and the actuation was measured using a microscope interfaced with a computer. Both samples are exposed to the PIMA effect, and Co-Ni-Al shows a maximum actuation of 26µm, which is increased to 29.2µm for a 3.5 kAm-1 magnetic field. Therefore, a spatial gradient of voltage (Hall effect) along the ribbon might take place, and the structure of the samples is distorted by an unbalanced force that is more noticeable for the applied magnetic field. Finally, a prototype model of the surgical tool of the Co-Ni-Al system has been designed and executed for performance.

Keywords

Photo-Induced Actuation Ferromagnetic Ribbon Finemet® Artificial Intelligent.

Publication Details

  • Type of Publication: Conference
  • Conference Name: 1st National Conference on Advances in Science and Technology
  • Date of Conference: 12/07/2023 - 12/08/2023
  • Venue: Bangladesh University of Engineering & Technology (BUET)
  • Organizer: Bangladesh University of Engineering & Technology (BUET)
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