Hf2S
ceramic· Hf2S
Hf2S is a hafnium sulfide ceramic compound that belongs to the family of refractory transition metal chalcogenides. This material is primarily of research interest for high-temperature and extreme-environment applications due to hafnium's exceptional thermal stability and sulfide's contributions to chemical resilience. Hf2S has potential in aerospace thermal protection systems, nuclear reactor components, and advanced ceramic coatings where conventional materials degrade; however, it remains largely in the experimental/development phase rather than widespread industrial production, making it most relevant for specialized engineering teams evaluating next-generation refractory solutions.
refractory ceramicshigh-temperature coatingsaerospace thermal protectionnuclear reactor materialsextreme-environment applicationsresearch and development
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 19,057.7 | ksi | — | ||
| ↳ | 19,812.2 | ksi | — | ||
Poisson's Ratio(ν) | 0.2700 | - | — | ||
Shear Modulus(G)2 entries | 10,718.8 | ksi | — | ||
| ↳ | 11,196.9 | 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) | 0.4007 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.000 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -41.73 | 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) | -1.102 | 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.