BeSiN2 — Properties & Data | MatWorld

BeSiN2

ceramic

· BeSiN2

BeSiN₂ is an advanced ceramic compound combining beryllium, silicon, and nitrogen—a material class explored primarily in research contexts for extreme-performance applications. While not widely commercialized, beryllium-containing ceramics are investigated for environments demanding high thermal stability, low density, and exceptional stiffness, particularly in aerospace and defense sectors where conventional ceramics reach thermal or weight limits.

aerospace thermal protectionhigh-temperature structural componentslightweight refractory applicationsdefense/advanced research programsmaterials research (experimental)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	32,987.4	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1900	-	DFT · OptB88vdW
Shear Modulus(G)	27,451.3	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1149	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	3.837	eV	DFT · OptB88vdW
↳	5.168	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	8.712	-	DFT · OptB88vdW
↳	8.530	-	DFT · PBE
↳	6.548 range 4.579–8.518median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.535	-	DFT · OptB88vdW
↳	3.935	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.4800	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.677	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.8512	C/m²	DFT · OptB88vdW
↳	0.07663	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00200	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00233	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-175.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	368.5	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.379	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.

BeSiN2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental