ErH2

ceramic

· JVASP-35861· ErH2

Erbium dihydride (ErH₂) is an ionic ceramic compound belonging to the rare-earth hydride family, where erbium metal is combined with hydrogen to form a dense ceramic phase. This material is primarily of research and development interest rather than established in high-volume industrial production, with potential applications in specialized fields requiring rare-earth hydride properties such as neutron absorption, hydrogen storage studies, or advanced ceramic matrix composites. ErH₂ represents an experimental platform for understanding hydrogen-ceramic interactions and rare-earth element behavior in ceramic systems, with possible future relevance to nuclear engineering, energy storage, or high-temperature ceramic applications.

nuclear engineering (neutron moderators/absorbers)hydrogen storage researchrare-earth ceramic compositesadvanced materials researchthermal barrier applications (experimental)materials science investigations

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	13,028.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2300	-	DFT · OptB88vdW
Shear Modulus(G)	8,740	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2990	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	0.000	eV	DFT · OptB88vdW
↳	0.1930	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	6.389	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000151	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000160	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-1.800	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-1.850	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	6.080	%	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)	0.2218	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5226	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.

ErH2 — Properties & Data | MatWorld

ErH2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental