Ho2Be2SiO7 — Properties & Data | MatWorld

Ho2Be2SiO7

ceramic

· JVASP-21454· Ho2Be2SiO7

Ho2Be2SiO7 is a rare-earth silicate ceramic compound containing holmium, beryllium, and silicon oxide phases. This material exists primarily in research and development contexts rather than established commercial production; it belongs to the family of rare-earth silicates being investigated for high-temperature structural and functional applications. Engineers would consider this compound for specialized thermal management, refractory applications, or as a constituent phase in composite systems where the combination of rare-earth and beryllium chemistry offers unique thermal stability and mechanical properties not easily achieved with conventional ceramics.

high-temperature refractory applicationsaerospace thermal barriersresearch ceramic matricesnuclear reactor componentsoptical/photonic materials development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	170.2	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	94.71	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.382	kg/m³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	5.265	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	12.06	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.609	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.05599	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000708	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000280	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-132.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	453.2	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)	-3.428	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.

Ho2Be2SiO7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental