Y2Be2SiO7 — Properties & Data | MatWorld

Y2Be2SiO7

ceramic

· JVASP-21400· Y2Be2SiO7

Y2Be2SiO7 is an yttrium beryllium silicate ceramic compound combining rare-earth and beryllium chemistries in a silicate framework. This material exists primarily in research and specialized contexts rather than broad industrial production, being investigated for high-temperature applications where its yttrium and beryllium constituents offer potential advantages in thermal stability and low thermal expansion. Its development targets niche aerospace, nuclear, and optoelectronic applications where the unique combination of elements can provide performance benefits unavailable in conventional ceramics.

high-temperature aerospace componentsnuclear reactor materialsoptoelectronic substratesthermal management systemsresearch and developmentadvanced refractory applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1570	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	5.419	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	12.09	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.600	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1020	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000759	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000292	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-196.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	458.8	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.430	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.

Y2Be2SiO7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental