Abstract
Abstract The development of Fe- and Co- based amorphous soft magnetic materials with low critical cooling rate for glass formation with a wide supercooled liquid region before crystallization has become an important topic for fundamental as technological reasons. We have synthesized new alloys with composition Fe 28.75 Co 28.75 Ni 17.5 X 8 B 17 (X=Si or Ge) and we have studied the evolution of their magnetic and crystallographic properties when heated from room temperature to 900°C. The techniques used to measure their evolution are in situ powder neutron diffraction and Faraday magnetic torque. As synthesized, the alloys are vitreous with a supercooled liquid region of 48°C for the Si and Ge alloys, they are ferromagnetic with ordering temperatures of 420°C and 430°C for the Si and Ge alloys, respectively. There is a phase stability competition between the cs, BCC (α) or ccp (γ) forms as a function of the substitution scheme of the 3d transition metals (Fe, Co, Ni).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
