ScIr2

Name: ScIr2
Brand: MatWorld

ceramic

· ScIr2

ScIr2 is an intermetallic ceramic compound combining scandium and iridium, belonging to the family of refractory intermetallics. This material is primarily of research and development interest rather than established in high-volume production, with potential applications in extreme-temperature environments where conventional ceramics or superalloys reach their limits. The Ir-rich composition suggests interest in combining iridium's excellent oxidation resistance and thermal stability with scandium's lighter-weight contribution, making it notable for exploration in aerospace and high-temperature structural applications where both stiffness and thermal durability are critical.

High-temperature structural applicationsAerospace engine components (research phase)Refractory intermetallic coatingsExtreme-environment materials developmentThermal barrier or oxidation-resistant systems

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	31,910.4	ksi	DFT
↳	32,241.9	ksi	DFT · OptB88vdW
↳	31,910.4	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.3358	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3100	-	DFT · OptB88vdW
↳	0.3022	-	DFT · PBE
Shear Modulus(G)3 entries	14,543.6	ksi	DFT
↳	14,689.4	ksi	DFT · OptB88vdW
↳	14,543.6	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)	0.5074	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	0.000301	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000419	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	14.28	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	16.79	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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.05820	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.7853	eV/atom	DFT · OptB88vdW
↳	-0.6871	eV/atom	Measured

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

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.

ScIr2 — Properties & Data | MatWorld

ScIr2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental