HfSO
ceramic· HfSO
HfSO is a hafnium-based ceramic compound combining hafnium with sulfur and oxygen, belonging to the family of refractory oxysulfides and mixed-anion ceramics. This material is primarily of research and developmental interest rather than established in high-volume production, with potential applications in high-temperature structural components, thermal barrier coatings, and extreme environment engineering where traditional oxides may be limited. The combination of hafnium's inherent refractory properties with sulfur incorporation offers potential for tailored mechanical and thermal performance in aerospace, nuclear, and next-generation energy systems.
high-temperature ceramicsthermal barrier coatingsrefractory materialsaerospace structural componentsresearch/advanced ceramicsextreme environment applications
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 19,876.3 | ksi | — | ||
| ↳ | 21,533.8 | ksi | — | ||
Poisson's Ratio(ν) | 0.3200 | - | — | ||
Shear Modulus(G)2 entries | 8,296.8 | ksi | — | ||
| ↳ | 8,969.1 | ksi | — |
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 | |
|---|---|---|---|---|---|
Density(ρ) | 0.2961 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 2.870 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 15.88 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.3548 | C/m² | — | ||
| ↳ | 0.2276 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -324 | µV/K | — |
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) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -2.771 | 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.