Si2SeN2

ceramic

· JVASP-100443· Si2SeN2

Si₂SeN₂ is a ternary ceramic compound combining silicon, selenium, and nitrogen—a rare composition that falls within the broader family of silicon nitride-based ceramics with chalcogen modifications. This material is primarily of research and developmental interest rather than established commercial production, being investigated for specialized applications where the selenium incorporation may provide unique electronic, thermal, or optical properties distinct from conventional silicon nitride ceramics.

advanced ceramics researchhigh-temperature structural applicationssemiconductor device developmentexperimental thermoelectric materialsrefractory compound engineeringmaterials science exploration

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	15,514.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	11,020	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1310	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions
Band Gap(Eg)	3.004	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.597	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.08910	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.8569	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.

Si2SeN2 — Properties & Data | MatWorld

Si2SeN2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental