ScIr — Properties & Data | MatWorld

ScIr

Name: ScIr
Brand: MatWorld

ceramic

· ScIr

ScIr is an intermetallic ceramic compound combining scandium and iridium, representing a high-density refractory material from the transition-metal ceramics family. This material exhibits exceptional stiffness and thermal stability, making it candidates for extreme-environment applications where conventional ceramics or superalloys reach their performance limits. ScIr remains largely in the research and development phase, with potential applications in aerospace propulsion, wear-resistant coatings, and high-temperature structural components where its density and elastic properties provide advantages in demanding thermal and mechanical environments.

high-temperature structural applicationsrefractory coatingsaerospace propulsion systemsextreme-environment wear resistanceresearch materials developmentadvanced ceramics

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	165.7	GPa	DFT
↳	173.3	GPa	DFT · OptB88vdW
↳	165.7	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.06628	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3600	-	DFT · OptB88vdW
↳	0.3025	-	DFT · PBE
Shear Modulus(G)3 entries	75.36	GPa	DFT
↳	61.10	GPa	DFT · OptB88vdW
↳	75.36	GPa	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)	11.76	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	0.000	eV	Measured
↳	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000244	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000496	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-3.590	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	5.110	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-1.137	eV/atom	DFT · OptB88vdW
↳	-0.9297	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.

ScIr

Mechanical Properties

Physical Properties

Electrical Properties

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Regulatory Screening

Environmental