Ho4 Hf4 O14

semiconductor

· Ho4 Hf4 O14

Ho₄Hf₄O₁₄ is a mixed rare-earth hafnium oxide ceramic compound combining holmium and hafnium in an oxidic matrix. This material is primarily of research and developmental interest for high-temperature structural and functional applications, particularly where combined thermal stability, radiation resistance, and refractory properties are needed; the hafnium-holmium oxide system has been investigated for advanced thermal barrier coatings, nuclear fuel cladding alternatives, and next-generation refractory ceramics where conventional materials reach performance limits.

thermal barrier coatingsnuclear fuel applicationsrefractory ceramicshigh-temperature structural materialsradiation-resistant ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	3.203	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-3.828	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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 Hf4 O14

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control