Ho4 Al4 O12

ceramic

· Ho4 Al4 O12

Ho₄Al₄O₁₂ is a holmium aluminum oxide ceramic compound belonging to the rare-earth oxide family, characterized by a mixed-valence structure that influences its mechanical and thermal properties. This material is primarily of research interest for high-temperature applications and advanced ceramic systems, particularly in contexts requiring rare-earth dopants or host matrices for optical, thermal management, or structural applications in demanding environments.

high-temperature ceramicsrare-earth oxide researchthermal barrier coatingsrefractory materialsoptical/photonic materials researchadvanced structural composites

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	29,811.6	ksi	—
Shear Modulus(G)	17,823.3	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	5.981	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.643	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.

Ho4 Al4 O12

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental