CeB4 — Properties & Data | MatWorld

CeB4

Name: CeB4
Brand: MatWorld

ceramic

· CeB4

Cerium tetraboride (CeB₄) is a rare-earth ceramic compound combining cerium with boron in a refractory ceramic matrix. This material is primarily of research and specialized industrial interest, valued for its potential as a thermionic emitter and cathode material in high-temperature electron sources, as well as for refractory applications in extreme thermal environments.

thermionic cathodeselectron gun componentshigh-temperature refractoriesvacuum electronicsmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2098	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000513	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000485	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	19.40	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	18.81	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.6295	eV/atom	DFT · OptB88vdW
↳	-0.5545	eV/atom	Measured

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

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.

CeB4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental