ThSi — Properties & Data | MatWorld

ThSi

Name: ThSi
Brand: MatWorld

ceramic

· ThSi

Thorium silicide (ThSi) is an intermetallic ceramic compound combining thorium and silicon, belonging to the family of refractory silicides used in high-temperature structural applications. This material is primarily of research and specialized industrial interest for extreme thermal environments where conventional metals and oxides fail, such as nuclear reactor components, hypersonic vehicle structures, and advanced propulsion systems. ThSi offers potential advantages in thermal stability and oxidation resistance at elevated temperatures, though it remains less commercially established than competing refractory ceramics like molybdenum disilicide or zirconium diboride.

nuclear reactor componentshigh-temperature structural ceramicsrefractory materialsaerospace thermal protectionresearch/advanced propulsion systemsextreme environment applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.724	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	Measured
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000982	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000875	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-23.47	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-21.90	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	-0.6561	eV/atom	DFT · OptB88vdW
↳	-0.6633	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.

ThSi

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental