HfZrO4

ceramic
· JVASP-49820· HfZrO4

HfZrO4 is a mixed-oxide ceramic compound combining hafnium oxide and zirconium oxide, belonging to the family of high-temperature refractory ceramics. This material is primarily of research and development interest for advanced applications requiring exceptional thermal stability and chemical resistance, particularly in environments where conventional oxides degrade. HfZrO4 is investigated for next-generation semiconductor gate dielectrics, thermal barrier coatings in aerospace propulsion systems, and high-temperature structural applications where the combined properties of hafnia and zirconia offer advantages over single-oxide alternatives.

semiconductor gate dielectricsthermal barrier coatingsaerospace engine componentshigh-temperature structural ceramicsrefractory materials research

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
31,354.3
ksi
Poisson's Ratio(ν)
0.3000
-
Shear Modulus(G)
16,524.2
ksi
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.2599
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
3.636
eV
Magnetic Moment(μB)
0.000
µB
Seebeck Coefficient(S)
-272.1
µV/K
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.05250
eV/atom
Formation Energy(ΔHf)
-3.704
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.