Cr3Ir — Properties & Data | MatWorld

Cr3Ir

metal

· Cr3Ir

Cr₃Ir is an intermetallic compound combining chromium and iridium in a 3:1 stoichiometric ratio, forming a hard, dense metallic phase. This material belongs to the family of refractory intermetallics and is primarily of research and development interest rather than established high-volume industrial use. The chromium-iridium system is explored for high-temperature structural applications where both hardness and thermal stability are critical, leveraging iridium's exceptional corrosion resistance and high melting point alongside chromium's hardening capability.

high-temperature aerospace componentsrefractory intermetallics researchcorrosion-resistant coatingscatalytic applicationsdental and medical alloys (experimental)

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	40,000.9	ksi	DFT
↳	40,513.4	ksi	DFT · OptB88vdW
↳	40,000.9	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.2433	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3400	-	DFT · OptB88vdW
↳	0.3329	-	DFT · PBE
Shear Modulus(G)3 entries	15,039.8	ksi	DFT
↳	14,544.4	ksi	DFT · OptB88vdW
↳	15,039.8	ksi	DFT · PBE

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
Density(ρ)	0.4179	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000351	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000430	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	3.680	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	4.080	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00540	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.07572	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

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.

Cr3Ir

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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