Al4Bi2O9

ceramic

· JVASP-23918· Al4Bi2O9

Al4Bi2O9 is an advanced ceramic compound composed of aluminum and bismuth oxides, belonging to the family of mixed-metal oxide ceramics. This material is primarily of research and developmental interest rather than established in widespread industrial production, with potential applications in specialized electronic, optical, and thermal management applications where bismuth oxide's unique properties—such as high refractive index and photocatalytic characteristics—can be leveraged in a stable aluminum oxide matrix. Engineers would consider this material for niche applications requiring thermal stability combined with specific optical or electronic functionality that conventional alumina or other oxides cannot provide.

advanced ceramics researchoptical coatings (experimental)photocatalytic applicationshigh-temperature thermal barrierselectronic substrate materialsbismuth-based compound systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2194	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.843	eV	—
Seebeck Coefficient(S)	-135.1	µV/K	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	—
Formation Energy(ΔHf)	-2.682	eV/atom	—

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

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.

Al4Bi2O9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental