MoIr3 — Properties & Data | MatWorld

MoIr3

metal

· MoIr3

MoIr3 is an intermetallic compound combining molybdenum and iridium in a 1:3 atomic ratio, belonging to the family of refractory metal intermetallics. This material is primarily of research and development interest rather than established in broad industrial production, with potential applications in extreme-environment applications where very high melting points and chemical stability are required. Its notable characteristics stem from iridium's exceptional hardness and corrosion resistance combined with molybdenum's strength, making it a candidate for specialized aerospace, chemical processing, or high-temperature catalytic applications where conventional superalloys reach their limits.

High-temperature structural applicationsRefractory alloy researchAerospace extreme environmentsChemical catalyst substratesWear-resistant coatings (exploratory)Corrosion-resistant engineering

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	337.0	GPa	DFT
↳	339.6	GPa	DFT · OptB88vdW
↳	337.0	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.09094	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2700	-	DFT · OptB88vdW
↳	0.2651	-	DFT · PBE
Shear Modulus(G)3 entries	187.7	GPa	DFT
↳	186.0	GPa	DFT · OptB88vdW
↳	187.7	GPa	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.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	18.93	kg/m³	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	7.100e-7	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	1.567e-7	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	0.08000	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.1633	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3481	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

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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.

MoIr3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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