YbTmB12 — Properties & Data | MatWorld

YbTmB12

ceramic

· JVASP-142341· YbTmB12

YbTmB12 is a rare-earth hexaboride ceramic compound combining ytterbium and thulium borides, belonging to the rare-earth boride family known for exceptional hardness and high-temperature stability. This material is primarily investigated in research contexts for applications demanding extreme wear resistance and thermal performance, with potential use in cutting tools, refractory components, and high-temperature structural applications where conventional ceramics fall short. Rare-earth hexaborides offer advantages over standard boron carbides in thermal shock resistance and oxidation stability, though YbTmB12 remains largely experimental rather than widely commercialized.

high-temperature refractoriescutting tool insertswear-resistant coatingsexperimental ceramicsextreme environment components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.730	kg/m³	DFT · OptB88vdW

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Filter by

Method

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	DFT · OptB88vdW
↳	eV	DFT · TBmBJ
Magnetic Moment(μB)	µB	DFT · OptB88vdW

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01670	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4463	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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.

YbTmB12

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental