Th3Bi4

ceramic

· JVASP-12508· Th3Bi4

Th3Bi4 is an intermetallic ceramic compound combining thorium and bismuth, belonging to the class of rare-earth and actinide-based ceramic materials. This is a research-phase compound with limited commercial production; it represents exploration within the thorium metallurgy family for potential high-density, refractory applications. The material's notable density and stiffness characteristics suggest interest in specialized nuclear, aerospace, or radiation-shielding contexts where conventional ceramics are insufficient, though practical engineering adoption remains developmental.

radiation shielding (research)nuclear fuel matrix (experimental)high-density structural ceramics (exploratory)refractory applications (advanced)actinide materials researchaerospace/defense advanced materials (pre-commercial)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	10,515.2	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)	5,578.2	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4055	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.1200	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	44.59	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	39.76	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.2972	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000578	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00230	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-96.66	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	204.2	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.6727	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.

Th3Bi4 — Properties & Data | MatWorld

Th3Bi4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental