Ho2 O3

ceramic

· Ho2 O3

Holmium oxide (Ho₂O₃) is a rare-earth ceramic compound belonging to the lanthanide oxide family, characterized by high melting point and chemical stability. It is employed in specialized applications including neutron absorption in nuclear reactor control systems, phosphor materials in optical devices, and as a dopant in laser crystals for medical and industrial laser systems. Engineers select holmium oxide primarily for its exceptional thermal stability and unique optical properties in high-performance applications where standard ceramics are insufficient.

nuclear reactor control materialslaser crystals and optical devicesphosphor applicationshigh-temperature ceramic coatingsneutron shieldingspecialty optical systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	23,141.6	ksi	—
Shear Modulus(G)	10,145.8	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.342	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.819	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.

Ho2 O3

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental