Si2Ir — Properties & Data | MatWorld

Si2Ir

ceramic

· JVASP-101429· Si2Ir

Si₂Ir is an intermetallic ceramic compound combining silicon and iridium, belonging to the family of refractory intermetallics designed for extreme-temperature applications. This material is primarily investigated in research and advanced aerospace contexts where exceptional hardness, thermal stability, and oxidation resistance at elevated temperatures are critical; it represents a specialized alternative to conventional superalloys and monolithic ceramics when damage tolerance and thermal shock resistance are required alongside ultra-high-temperature performance.

aerospace propulsion systemshigh-temperature structural applicationsextreme environment researchrefractory coatingsturbine componentsoxidation-resistant materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.677	kg/m³	DFT · OptB88vdW

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Filter by

Method

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	DFT · OptB88vdW
↳	eV	DFT · TBmBJ
Magnetic Moment(μB)	µB	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
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4058	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.

Si2Ir

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental