YbH2

ceramic

· JVASP-51409· YbH2

Ytterbium dihydride (YbH₂) is an ionic ceramic compound belonging to the rare-earth metal hydride family, characterized by a fluorite crystal structure and metallic-like density. Though primarily a research material rather than an established industrial ceramic, YbH₂ is investigated for hydrogen storage applications, advanced reactor materials, and as a model system for understanding metal-hydride bonding in the lanthanide series. Its relatively high density and stiffness make it of interest in specialized contexts where rare-earth hydride properties—such as neutron absorption behavior or thermal properties—offer advantages over conventional ceramics or metals.

hydrogen storage researchnuclear reactor materialsrare-earth chemistry studiessolid-state physicsadvanced ceramics developmentneutron absorbers

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	7,218.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2300	-	DFT · OptB88vdW
Shear Modulus(G)	4,879.1	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2719	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.294	eV	DFT · OptB88vdW
↳	5.190	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	9.936	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.474	-	DFT · OptB88vdW
↳	3.167	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.7433	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.360	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00289	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00138	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-274.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	300.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

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)	0.07030	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.6446	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.

YbH2 — Properties & Data | MatWorld

YbH2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental