HeSiO2 — Properties & Data | MatWorld

HeSiO2

ceramic

· JVASP-98448· HeSiO2

HeSiO2 is an experimental silica-based ceramic compound incorporating helium, representing research into novel oxide ceramics with potential for extreme-environment applications. While not yet established in mainstream industrial production, this material family is being investigated for high-temperature and specialized optical applications where helium incorporation might provide unique thermal or structural properties unavailable in conventional silicates. Engineers evaluating this material should note it remains in the research phase and would require validation against specific performance requirements before consideration for critical applications.

high-temperature ceramics (research)advanced refractory materialsoptical/photonic ceramics (experimental)extreme environment engineeringthermal insulation systems (developmental)specialized laboratory applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	53.84	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1200	-	DFT · OptB88vdW
Shear Modulus(G)	48.03	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.189	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	6.869	eV	DFT · OptB88vdW
↳	8.813	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.206	-	DFT · OptB88vdW
↳	1.834	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.8467	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.130	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000979	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00203	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-181	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	384.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

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)	0.01710	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.163	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.

HeSiO2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental