HoTaO4
ceramic· JVASP-8801· HoTaO4
HoTaO4 is a rare-earth tantalate ceramic compound combining holmium and tantalum oxides, belonging to the family of complex oxide ceramics studied for high-temperature and specialized optical applications. This material is primarily of research and developmental interest rather than widely commercialized, with potential applications in high-temperature structural components, optical devices, and environments requiring chemical stability combined with dense ceramic properties. Engineers would consider this compound where rare-earth doping and tantalate chemistry offer advantages in thermal stability, radiation resistance, or photonic applications beyond what conventional ceramics provide.
high-temperature ceramicsoptical and photonic devicesradiation-resistant componentsrare-earth compoundsresearch and developmentspecialist refractory materials
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 193.6 | GPa | — | ||
Poisson's Ratio(ν) | 0.3200 | - | — | ||
Shear Modulus(G) | 93.54 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 9.861 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 2.498 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 19.42 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.2577 | C/m² | — | ||
Seebeck Coefficient(S) | -315.3 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2092 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.313 | 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.