Rb2CaH4 — Properties & Data | MatWorld

Rb2CaH4

ceramic

· Rb2CaH4

Rb2CaH4 is an ionic hydride ceramic compound combining rubidium, calcium, and hydrogen—a material class that remains largely in the research phase rather than established industrial production. Hydride ceramics are investigated for hydrogen storage applications, thermal management systems, and as potential precursors in advanced ceramic processing, though Rb2CaH4 specifically has not seen widespread commercial deployment. Engineers would consider this material primarily in exploratory research contexts where hydrogen-rich ceramic matrices or novel ionic conductors might offer advantages over conventional alternatives, though practical engineering adoption would require demonstration of scalability, thermal stability, and cost-effectiveness relative to competing technologies.

hydrogen storage researchexperimental ceramicsionic conductor developmentthermal management systems (emerging)advanced material synthesislaboratory evaluation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	19.86	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	13.97	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.434	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.369	eV	DFT · OptB88vdW
↳	4.931	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	9.503	-	DFT · OptB88vdW
↳	10.11	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.036	-	DFT · OptB88vdW
↳	2.350	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00243	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00146	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-273	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	382.9	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00690	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4520	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.

Rb2CaH4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental