Ta2Si

ceramic

· Ta2Si

Ta₂Si is a tantalum silicide ceramic compound that combines tantalum's high density and refractory character with silicon to form an intermetallic ceramic with substantial stiffness and hardness. This material is primarily explored in high-temperature structural applications and wear-resistant coatings, where its combination of rigidity and thermal stability can provide advantages over conventional ceramics or metal alloys. Ta₂Si represents an emerging material class rather than a commodity—it is studied for extreme-environment applications (aerospace, industrial tooling) where the material family's inherent properties justify the processing complexity, though industrial adoption remains limited compared to more established alternatives like tungsten carbides or yttria-stabilized zirconia.

high-temperature structural coatingsrefractory ceramicsaerospace engine componentswear-resistant surfacesresearch and advanced applicationsultra-high-temperature materials

Compliance & Regulations

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

Units:

si imperial

Filter by

Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	31,238.8	ksi	DFT
↳	30,823.4	ksi	DFT · OptB88vdW
↳	31,238.8	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.2049	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2900	-	DFT · OptB88vdW
↳	0.2788	-	DFT · PBE
Shear Modulus(G)3 entries	16,211.9	ksi	DFT
↳	14,966.4	ksi	DFT · OptB88vdW
↳	16,211.9	ksi	DFT · PBE

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
Density(ρ)	0.4778	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00109	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00106	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-15.00	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-13.88	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)	0.00210	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4593	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.

Ta2Si — Properties & Data | MatWorld

Ta2Si

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental