Si4 Ir4

semiconductor

· Si4 Ir4

Si₄Ir₄ is an experimental intermetallic compound combining silicon and iridium, representing a high-performance ceramic-metallic hybrid material. This material family is investigated for extreme-temperature applications and structural uses where high stiffness combined with thermal stability is critical; however, it remains largely in the research phase with limited commercial deployment. The iridium content provides oxidation resistance and hardness typical of noble-metal composites, making it a candidate for aerospace and high-temperature engineering environments where conventional materials fail.

high-temperature structural applicationsaerospace componentsrefractory coatingsresearch and developmentextreme-environment engineeringwear-resistant surfaces

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	206.6	GPa	—
Shear Modulus(G)	84.15	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00660	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.6050	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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.

Si4 Ir4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control