SiC2N4

ceramic

· JVASP-13086· SiC2N4

SiC₂N₄ is a silicon carbide nitride ceramic compound that combines the refractory and hardness characteristics of silicon carbide with nitrogen-enhanced properties. This material belongs to the family of non-oxide ceramics and represents an emerging research composition designed to achieve improved thermal stability, wear resistance, and potential oxidation resistance compared to conventional SiC. While not yet widely commercialized, SiC₂N₄ is being investigated for high-temperature structural applications where engineers need exceptional hardness, thermal shock resistance, and chemical durability in harsh environments.

high-temperature ceramic compositeswear-resistant cutting toolsaerospace propulsion componentschemical/corrosion resistance applicationsresearch-phase advanced ceramicsrefractory applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	15,345	ksi	DFT · OptB88vdW
Shear Modulus(G)	-504.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.04339	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.273	eV	DFT · OptB88vdW
↳	5.650	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.867	-	DFT · OptB88vdW
↳	2.291	-	DFT · TBmBJ
Electron Effective Mass(m*e)	1.640	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.010	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000985	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00111	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-274.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	217.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2537	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1506	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

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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.

SiC2N4 — Properties & Data | MatWorld

SiC2N4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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