| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
2020 Undergraduate Student Poster Contest
|
| Presentation Title |
Maximizing Magnetostriction in Fe-Ga-Zr Nanocrystalline Alloys |
| Author(s) |
Ria Nandwana, Matthew Willard, Yumi Ijiri |
| On-Site Speaker (Planned) |
Ria Nandwana |
| Abstract Scope |
There is a demand for materials with large magnetostrictive coefficients due to their applicability in tunable multiferroic sensors. Fe-Ga single crystals and polycrystalline materials have exhibited large magnetostrictive coefficients on the order of several hundred ppm in bulk samples. Nanocrystalline Fe-Ga alloys would be advantageous for these sensor applications; however, they have been found to exhibit lower magnetostrictive coefficients. In our experiments, (Fe100-xGax)92Zr8 alloys were synthesized in the form of nanocomposite ribbons by rapid solidification processing. X-ray diffraction measurements were taken before and after annealing to ensure that the desired crystal structure was achieved. When measured, a maximum magnetostriction of 10.4 ppm was found at x= 22 for the nanocomposite ribbons. The coercivity and saturation magnetization of the sample was measured using VSM for additional characterization. |