HfIr3
ceramic· HfIr3
HfIr3 is an intermetallic ceramic compound combining hafnium and iridium in a 1:3 ratio, belonging to the family of refractory intermetallics designed for extreme-temperature structural applications. This material is primarily of research and development interest rather than established industrial production, positioned for potential use in aerospace and high-temperature engine environments where conventional superalloys reach their thermal limits. The hafnium-iridium system represents an emerging class of ultra-high-temperature materials being investigated for applications demanding exceptional stiffness and thermal stability in harsh operating conditions.
aerospace propulsion systemshigh-temperature structural componentsturbine blade reinforcementresearch material developmentrefractory applicationsextreme environment testing
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 39,993.8 | ksi | — | ||
| ↳ | 39,993.8 | ksi | — | ||
| ↳ | 41,209.6 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.8417 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2712 | - | — | ||
| ↳ | 0.2700 | - | — | ||
Shear Modulus(G)3 entries | 21,592.2 | ksi | — | ||
| ↳ | 21,592.2 | ksi | — | ||
| ↳ | 23,707.9 | 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) | 0.7246 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | 8.360 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01710 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.8424 | 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.