ScSi7Ir3 — Properties & Data | MatWorld

ScSi7Ir3

ceramic

· JVASP-21926· ScSi7Ir3

ScSi7Ir3 is a ceramic intermetallic compound combining scandium, silicon, and iridium—a material class that bridges ceramics and metallics by combining the stability of ceramic phases with metallic bonding characteristics. This composition is primarily of research and developmental interest, with potential applications in extreme-environment systems where high-temperature strength, oxidation resistance, and thermal stability are critical; the iridium content provides exceptional refractory properties while scandium and silicon promote phase stability. Engineers would consider this material family for ultra-high-temperature structural applications where conventional superalloys reach their limits, though current use remains largely experimental pending further characterization and scalability development.

high-temperature structural compositesrefractory coatingsaerospace propulsion researchoxidation-resistant linersexperimental intermetallic systemsextreme environment applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2928	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000366	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000409	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-56.82	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	10.68	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5827	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

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.

ScSi7Ir3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental