Synthesis and characterization of a strong ferromagnetic and high hardness intermetallic compound Fe₂B

Abstract

Magnetic materials attract wide attention due to their fundamental importance and practical application. However, the relatively inferior mechanical properties of traditional magnetic materials limit their application in harsh environment. In...

Revealing the Unusual Boron-Pinned Layered Substructure in Superconducting Hard Molybdenum Semiboride

“… 31 The hardness convergence value is 16.5 GPa at an applied load of 9.8 N, which represents the actual hardness of the Mo 2 B sample. It is superior to the hardness convergence values of Fe 2 B and Mn 2 B (12.4 GPa and 14.1 GPa, respectively) with the same structure, 32 , 33 indicating that the hardness of Mo 2 B in TM 2 B with an I 4/ mcm structure is advantageous. Moreover, this hardness convergence value is significantly greater than that of traditional hard steel (approximately 3 GPa).…”

Comparison of Ferromagnetic Materials: Past Work, Recent Trends, and Applications

“…Conventionally used ferromagnetic materials exhibit some limitations, such as a low hardness, which hinders their application and has necessitated the development of better ferromagnetic materials [8]. When ferromagnetism was unexpectedly observed in Ge, Mn, and Te, several studies were conducted on inorganic nonmetallic materials, and many ferromagnetic materials were successfully discovered.…”

“…Thus, the phenomenon of ferromagnetism is universal, and is demonstrated not only by magnetic elements, but also their impurities and non-magnetic elements by doping with oxide or other inorganic elements [16]. Furthermore, the drawbacks that limit the use of traditional magnetic elements have been overcome by mixing these elements with other compounds; for example, B [8]. Many modern medical procedures, such as varicose treatment, hyperthermia, and endovenous thermal ablation require local heating of the human body.…”

“…Boride compounds are gaining considerable attention because of their mechanical properties and high conductivities. They are widely used to overcome the hardness limitations of magnetic elements [8]. B, as an electron-deficient element, facilitates the trapping of electrons from other metal species by forming a strong B bond with these species.…”

“…Magnetic elements are traditionally used for several applications; nevertheless, they exhibit some limitations such as a low hardness, which must be overcome using elements including B. The hardness of some elements, such as Fe, has been considerably increased by treatment with B [8]. Recent studies on B transition metal compounds have revealed improved mechanical properties for these compounds [82].…”