TmFeB4

metal

· JVASP-116585· TmFeB4

TmFeB4 is an intermetallic compound combining thulium (a rare-earth element), iron, and boron, representing a specialized hard material in the rare-earth metal boride family. While not yet commercially widespread, this material is of research interest for applications requiring high hardness and stiffness in extreme environments; rare-earth borides are being investigated as potential alternatives to tungsten carbide and cubic boron nitride in cutting tools, wear-resistant coatings, and high-temperature structural applications where rare-earth magnetic or thermal properties might offer additional benefits.

hard coatings and wear resistancecutting tool researchhigh-temperature materialsrare-earth intermetallicsmaterials science research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	225.6	GPa	—
Poisson's Ratio(ν)	0.1700	-	—
Shear Modulus(G)	192.3	GPa	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	8.034	kg/m³	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	—
Formation Energy(ΔHf)	-0.6696	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

TmFeB4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control