SiIr2 — Properties & Data | MatWorld

SiIr2

ceramic

· JVASP-103651· SiIr2

SiIr₂ is an intermetallic ceramic compound combining silicon with iridium, belonging to the family of refractory metal silicides used in extreme-temperature structural applications. This material is primarily of research and emerging industrial interest for high-temperature aerospace and power-generation components where exceptional hardness and thermal stability are required. SiIr₂ represents an alternative to traditional nickel-based superalloys and tungsten-based ceramics in applications demanding resistance to oxidation and mechanical stress at temperatures where conventional materials degrade.

high-temperature aerospace componentsturbine engine shrouds and sealsrefractory coatingsextreme-environment structural applicationsresearch-phase materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	273.3	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3400	-	DFT · OptB88vdW
Shear Modulus(G)	34.74	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	16.21	kg/m³	DFT · OptB88vdW

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

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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1628	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2504	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.

SiIr2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental