Bi2B2O7 — Properties & Data | MatWorld

Bi2B2O7

ceramic

· JVASP-50502· Bi2B2O7

Bi₂B₂O₇ is a bismuth borate ceramic compound belonging to the family of mixed-metal oxide ceramics. This material is primarily investigated in research contexts for applications requiring thermal stability, optical properties, or specialized dielectric characteristics. Bismuth borates are of interest in photonic devices, thermal barrier coatings, and advanced ceramic formulations where bismuth's high atomic number and boron's glass-forming ability combine to create unique material behavior.

photonic materials researchthermal barrier applicationsdielectric ceramicsoptical coatings developmentadvanced ceramic compositeshigh-temperature electronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	6.839	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.3300	eV	DFT · OptB88vdW
↳	0.6690	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	6.042	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.03333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.03333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000884	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000713	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-227.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	257.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	22.65	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1264	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.709	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.

Bi2B2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental