SiGe2N4 — Properties & Data | MatWorld

SiGe2N4

ceramic

· JVASP-35202· SiGe2N4

SiGe₂N₄ is a silicon germanium nitride ceramic compound that belongs to the family of ternary nitride ceramics. This material represents an advanced ceramic research composition that combines silicon, germanium, and nitrogen to achieve enhanced mechanical and thermal properties compared to conventional binary nitrides. SiGe₂N₄ and related ternary nitride systems are being investigated for high-temperature structural applications, thermal barrier coatings, and wear-resistant components in aerospace and automotive engines, where the germanium addition is intended to improve fracture toughness and thermal stability compared to silicon nitride alone.

high-temperature structural ceramicsaerospace engine componentsthermal barrier coatingswear-resistant applicationsresearch/advanced materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	246.4	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1900	-	DFT · OptB88vdW
Shear Modulus(G)	200.1	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	5.633	kg/m³	DFT · OptB88vdW

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Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.650	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	6.423	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.3600	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.190	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00199	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00236	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-162.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	388.9	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1709	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2867	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.

SiGe2N4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental