SmSi2Ir2

ceramic

· JVASP-92735· SmSi2Ir2

SmSi2Ir2 is an intermetallic ceramic compound combining samarium, silicon, and iridium—a research-stage material belonging to the rare-earth transition metal silicide family. While not yet commercialized at scale, compounds in this material class are investigated for high-temperature structural applications and as potential candidates for extreme-environment components where thermal stability and chemical inertness are critical, offering an alternative to conventional superalloys or oxide ceramics in specialized aerospace and nuclear contexts.

High-temperature structural applications (research)Refractory coatings and compositesAdvanced aerospace materials (experimental)Nuclear environment resistanceWear-resistant thermal barriersIntermetallic matrix composites

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	24,029.9	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4200	-	DFT · OptB88vdW
Shear Modulus(G)	5,144.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3983	lb/in³	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)	0.1655	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.8622	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.

SmSi2Ir2 — Properties & Data | MatWorld

SmSi2Ir2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental