Be2Si — Properties & Data | MatWorld

Be2Si

ceramic

· JVASP-36414· Be2Si

Be₂Si is an intermetallic ceramic compound combining beryllium and silicon, belonging to the class of lightweight refractory ceramics. This material is primarily of research and specialized aerospace interest, valued for its low density combined with high-temperature stability and stiffness, making it a candidate for applications where weight reduction is critical. Be₂Si remains largely experimental at scale due to beryllium's toxicity concerns, manufacturing complexity, and cost, but represents potential for next-generation thermal protection systems and structural applications in extreme environments where conventional composites fall short.

aerospace thermal protectionhigh-temperature structural componentslightweight refractory applicationsresearch compound developmentspace vehicle insulationadvanced composite matrices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.052	kg/m³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000320	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000195	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-14.57	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-11.49	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2193	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.2177	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.

Be2Si

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental