Be3Al2Si6O18 — Properties & Data | MatWorld

Be3Al2Si6O18

ceramic

· JVASP-21116· Be3Al2Si6O18

Be₃Al₂Si₆O₁₈ is beryllium aluminium silicate, a naturally occurring mineral better known as beryl, which forms the ceramic oxide class of materials. This crystalline silicate is valued in aerospace and optics applications for its combination of low weight, thermal stability, and optical transparency in certain forms. The material is notable for applications requiring lightweight structural performance and dimensional stability across temperature ranges, where alternatives like traditional ceramics or metal composites may be too dense or thermally expansive.

aerospace mirror substrateslightweight structural applicationsthermal stability componentsoptical windows and lenseshigh-reliability electronicsspace instrumentation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.566	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	5.340	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.544	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000739	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00102	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-122.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	325.4	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)	0.00500	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.005	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.

Be3Al2Si6O18

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental