TiNiSn — Properties & Data | MatWorld

TiNiSn

metal

· TiNiSn

TiNiSn is a ternary intermetallic compound combining titanium, nickel, and tin, belonging to the class of advanced metallic materials and shape-memory or high-temperature alloy families. This material is primarily of research and developmental interest, with potential applications in thermoelectric devices, high-temperature structural components, and precision actuation systems where the combination of metallic bonding and intermetallic ordering provides specific mechanical and thermal characteristics. Engineers would consider TiNiSn where conventional binary alloys (such as TiNi or NiTi) fall short in performance, particularly when operating environments demand tailored thermal conductivity, stiffness, or shape-recovery behavior combined with tin's contribution to phase stability or cost optimization.

thermoelectric devicesshape-memory alloy researchhigh-temperature structural applicationsprecision actuatorsintermetallic research compoundsadvanced aerospace materials development

Compliance & Regulations

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

Units:

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	14,151.3	ksi	—
Poisson's Ratio(ν)	0.2800	-	—
Shear Modulus(G)	-3,083.5	ksi	—

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Property	Value	Unit	Conditions	Source
Thermal Conductivity(k)2 entries	3.511	BTU/(hr·ft·°F)	—
↳	3.511	BTU/(hr·ft·°F)	27°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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Property	Value	Unit	Conditions	Source
Density(ρ)	0.2354	lb/in³	—

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Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.01200	eV	—
Dielectric Constant (Relative Permittivity)(εr)	26.90 range 23.51–30.28median of 2 measurements	-	—
Electrical Conductivity(σ)	31.83	S/cm	27°C
Electrical Resistivity(ρe)	0.000314	Ω·m	27°C
Magnetic Moment(μB)	0.000	µB	—
Thermoelectric Power Factor(PF)	0.000234	W/(m·K²)	27°C
Seebeck Coefficient(S)2 entries	-271.3	μV/K	27°C
↳	-283.1	µV/K	—
Thermoelectric Figure of Merit(zT)	0.01157	-	27°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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.6595	eV/atom	—
Formation Energy(ΔHf)2 entries	-0.5452	eV/atom	—
↳	0.1124	eV/atom	—

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

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.