Ti3AlN — Properties & Data | MatWorld

Ti3AlN

metal

· Ti3AlN

Ti3AlN is a ternary ceramic-metal compound combining titanium, aluminum, and nitrogen, belonging to the family of transition metal nitrides and MAX-phase related materials. It is primarily investigated as a hard coating material and structural reinforcement phase in composite systems, valued for its potential to provide high hardness and thermal stability in demanding environments. Applications focus on wear-resistant coatings for cutting tools, protective surface layers in high-temperature machinery, and as a reinforcement constituent in metal-matrix or ceramic-matrix composites, where its combination of strength and nitride-phase stability offers advantages over conventional single-metal or binary nitride alternatives.

hard coatings for cutting toolswear-resistant surface treatmentshigh-temperature composite reinforcementthermal barrier systemsresearch-phase structural materials

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)2 entries	163.3	GPa	DFT
↳	162.7	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4000	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	44.86	GPa	DFT
↳	35.50	GPa	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
Density(ρ)	4.350	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00198	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00216	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	46.30	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	48.13	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)	0.02440	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.002	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

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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.

Ti3AlN

Mechanical Properties

Physical Properties

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Other Properties

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