Ba8 Hf2 O12

ceramic
· Ba8 Hf2 O12

Ba8Hf2O12 is a barium hafnium oxide ceramic belonging to the pyrochlore or related complex oxide family, characterized by a high-entropy crystal structure with multiple cation sites. This material is primarily of research and development interest for high-temperature applications where thermal stability, low thermal conductivity, and chemical inertness are required; it is being evaluated for thermal barrier coatings in aerospace engines, nuclear fuel matrices, and advanced refractory systems where conventional oxides may degrade. The hafnium and barium combination offers potential advantages in radiation resistance and sintering resistance compared to conventional stabilized zirconia or alumina systems, making it a candidate for next-generation extreme-environment applications.

thermal barrier coatingshigh-temperature refractoryaerospace propulsionnuclear materials researchadvanced ceramics developmentradiation-resistant oxides

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
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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.