BaBe2Si2O7

Name: BaBe2Si2O7
Brand: MatWorld

ceramic

· JVASP-21825· BaBe2Si2O7

BaBe₂Si₂O₇ is a barium beryllium silicate ceramic compound belonging to the silicate family of structural ceramics. This material is primarily of research and specialized industrial interest, valued for applications requiring combinations of low density, thermal stability, and optical transparency in high-performance ceramic systems. It is encountered in optics, aerospace thermal protection systems, and specialized refractory applications where silicate ceramics with alkaline-earth dopants offer advantages over conventional alternatives in thermal cycling resistance and chemical durability.

optical ceramicsthermal protection systemsaerospace coatingsrefractory compositeshigh-temperature windowsresearch compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	13,239	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2000	-	DFT · OptB88vdW
Shear Modulus(G)	9,736.4	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1420	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	6.056	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	9.456	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.073	-	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.3801	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000543	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000578	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-92.86	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	441	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.113	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.

BaBe2Si2O7 — Properties & Data | MatWorld

BaBe2Si2O7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental