BaHfO3
semiconductor· BaHfO3
BaHfO3 (barium hafnium oxide) is a ceramic perovskite compound that functions as a wide-bandgap semiconductor, belonging to the family of hafnate-based oxides used in advanced electronic and thermal applications. The material is primarily investigated in research contexts for high-temperature dielectric devices, nuclear fuel cladding coatings, and thermal barrier systems where chemical stability and refractory properties are critical. BaHfO3 is notable for its potential to replace conventional materials in extreme environments because hafnates exhibit superior thermal stability and radiation resistance compared to more common zirconate or aluminate alternatives.
thermal barrier coatingsnuclear fuel applicationshigh-temperature electronicsrefractory ceramicsradiation-resistant coatingswide-bandgap semiconductors
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 24,395.3 | ksi | — | ||
Poisson's Ratio(ν) | 0.2400 | - | — | ||
Shear Modulus(G) | 15,768.5 | ksi | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2967 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 3.687 | eV | — | ||
| ↳ | 6.700 | eV | — | ||
| ↳ | 3.683 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 34.37 | - | — | ||
| ↳ | 24.28 range 4.680–43.88median of 2 measurements | - | — | ||
Magnetic Moment(μB)3 entries | 0.000 | μB | — | ||
| ↳ | 0.0000577 | μB | — | ||
| ↳ | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01280 | eV/atom | — | ||
Formation Energy(ΔHf)4 entries | -3.625 | eV/atom | — | ||
| ↳ | -0.2600 | eV/atom | — | ||
| ↳ | -3.710 | eV/atom | — | ||
| ↳ | -3.650 | eV/atom | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
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.