OsC — Properties & Data | MatWorld

OsC

ceramic

· OsC

Osmium carbide (OsC) is a refractory ceramic compound combining osmium metal with carbon, belonging to the family of transition metal carbides. It is an extremely dense and hard material designed for extreme-environment applications where conventional ceramics or metals are inadequate. Though primarily in research and development stages, OsC and related osmium compounds are explored for ultra-high-temperature structural applications, wear-resistant coatings, and specialized cutting tools where exceptional hardness and thermal stability are required.

refractory coatingscutting tool insertshigh-temperature structural componentswear-resistant surfacesresearch applicationsaerospace/defense thermal barriers

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	208.7	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	118.8	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	14.80	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.1910	eV	DFT · OptB88vdW
↳	0.3400	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	70.69 range 57.86–83.51median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	69.14	-	DFT · OptB88vdW
↳	54.78	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00536	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000124	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-226.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-38.19	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	7.160	%	DFT · TBmBJ

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)	0.7386	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.7370	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.

OsC

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental