BaSi4O9 — Properties & Data | MatWorld

BaSi4O9

ceramic

· JVASP-45378· BaSi4O9

Barium silicate (BaSi₄O₉) is an inorganic ceramic compound belonging to the silicate family, composed of barium oxide and silicon dioxide in a fixed stoichiometric ratio. This material is primarily investigated for applications requiring high-temperature stability and chemical inertness, particularly in specialized glass and ceramic coatings, refractory formulations, and as a precursor in advanced ceramic processing. Barium silicates are notable for their thermal shock resistance and low thermal expansion characteristics, making them attractive alternatives to conventional silicates in applications where thermal cycling or corrosive environments present challenges.

high-temperature coatingsrefractory ceramicsglass manufacture additivesthermal barrier systemsspecialty cement formulationsresearch/advanced ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1337	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	4.498	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	8.707	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.926	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.07381	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00107	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00156	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-125.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	324.2	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.

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)	-2.996	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.

BaSi4O9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental