TaAlSi

metal

· JVASP-106728· TaAlSi

TaAlSi is a ternary intermetallic alloy combining tantalum, aluminum, and silicon, belonging to the refractory metal alloy family. This material is primarily of research interest for high-temperature structural applications, leveraging tantalum's exceptional melting point and oxidation resistance combined with aluminum and silicon for density and wear property optimization. Engineers consider TaAlSi compounds for extreme-environment applications where conventional nickel-based superalloys reach their thermal limits, though commercial adoption remains limited compared to established refractory alloy systems.

High-temperature structural componentsAerospace propulsion systemsRefractory intermetallic researchOxidation-resistant coatingsUltra-high-temperature applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2996	lb/in³	DFT · OptB88vdW

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Filter by

Method

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	DFT · OptB88vdW
↳	eV	DFT · TBmBJ
Magnetic Moment(μB)	µB	DFT · OptB88vdW

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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.06170	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2904	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

Export Control

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.

TaAlSi — Properties & Data | MatWorld

TaAlSi

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control