Ba4HfIr

ceramic

· JVASP-66193· Ba4HfIr

Ba₄HfIr is a complex ceramic compound combining barium, hafnium, and iridium elements, likely studied as a high-performance material for extreme-environment applications. This is primarily a research-phase material rather than a commercial engineering standard; compounds in this family are investigated for their potential thermal stability, oxidation resistance, and mechanical properties at elevated temperatures. Materials combining refractory metals like hafnium and iridium with alkaline earth elements are of interest in aerospace, nuclear, and specialized high-temperature applications where conventional ceramics reach performance limits.

high-temperature structural applicationsaerospace research materialsrefractory ceramicsextreme environment testingadvanced material researchthermal barrier coatings (potential)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2570	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	2.841	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	1.540	eV/atom	—
Formation Energy(ΔHf)	1.205	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.

Ba4HfIr

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental