GeIr — Properties & Data | MatWorld

GeIr

Name: GeIr
Brand: MatWorld

ceramic

· GeIr

GeIr is an intermetallic ceramic compound combining germanium and iridium, representing a high-density material from the refractory intermetallic family. This compound is primarily of research and specialized interest rather than mainstream industrial production, with potential applications leveraging the high density and thermal stability of iridium-based systems. Engineers would evaluate GeIr for extreme-environment applications where the combination of density, hardness, and chemical inertness of iridium-germanium phases offers advantages over more conventional alternatives, though material availability and processing challenges typically limit it to niche or emerging applications.

high-temperature refractory applicationsradiation shieldingresearch/experimental compoundsdense structural compositesspecialty electronics or opticsextreme-environment engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	13.55	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	0.000168	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000148	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	4.363	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	3.887	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.

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)3 entries	-0.3431	eV/atom	Measured
↳	-0.2894	eV/atom	DFT · OptB88vdW
↳	-0.3399 range -0.3431–-0.3368median of 2 measurements	eV/atom	Measured

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

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.

GeIr

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental