Hf2Al3C4
metal· Hf2Al3C4
Hf2Al3C4 is a hafnium-aluminum carbide ceramic compound that combines the refractory properties of hafnium carbide with aluminum for enhanced workability and lower density. This material belongs to the family of transition metal carbides and is primarily of research and developmental interest, explored for ultra-high-temperature structural applications where extreme thermal stability and mechanical rigidity are required alongside weight considerations.
High-temperature ceramicsAerospace/hypersonic structuresRefractory coatingsAdvanced composite reinforcementResearch material
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 28,530.7 | ksi | — | ||
| ↳ | 28,530.7 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.04495 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν) | 0.1857 | - | — | ||
Shear Modulus(G)2 entries | 22,691.1 | ksi | — | ||
| ↳ | 22,691.1 | 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) | 0.2729 | 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 | — |
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) | -0.6154 | eV/atom | — |
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.