TiAl2 — Properties & Data | MatWorld

TiAl2

metal

· TiAl2

TiAl2 is an intermetallic compound in the titanium-aluminum system, representing a lightweight metallic material with a defined stoichiometric composition. This compound is primarily of research and development interest for high-temperature structural applications where the combination of low density and intermetallic strengthening mechanisms offers potential advantages over conventional titanium alloys, though it remains less commercially established than Ti-Al solid solutions used in aerospace.

high-temperature aerospace structureslightweight structural componentsintermetallic research applicationsengine componentsMaterials development and characterization

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	15,745.3	ksi	DFT
↳	15,400.1	ksi	DFT · OptB88vdW
↳	15,689.4	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.1468	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2100	-	DFT · OptB88vdW
↳	0.2004	-	DFT · PBE
Shear Modulus(G)3 entries	11,909.4	ksi	DFT
↳	11,262.2	ksi	DFT · OptB88vdW
↳	11,747.8	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)	0.1270	lb/in³	DFT · OptB88vdW

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

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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00300	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4320	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

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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.

TiAl2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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