YSi2
ceramic· YSi2
YSi₂ is an intermetallic ceramic compound belonging to the rare-earth silicide family, combining yttrium with silicon in a defined stoichiometric ratio. It is primarily investigated as a high-temperature structural material and coating constituent for extreme-temperature applications where conventional ceramics or metals reach their limits. The material is notable for its potential use in aerospace propulsion systems, thermal barrier coatings, and nuclear applications, though it remains largely in research and development rather than high-volume production.
high-temperature structural applicationsthermal barrier coatingsaerospace propulsionnuclear reactor componentsrefractory composite reinforcementresearch materials
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 12,304.6 | ksi | — | ||
| ↳ | 12,304.6 | ksi | — | ||
| ↳ | 11,925 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 1.399 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.3595 | - | — | ||
| ↳ | 0.3500 | - | — | ||
Shear Modulus(G)3 entries | 3,814.5 | ksi | — | ||
| ↳ | 3,814.5 | ksi | — | ||
| ↳ | 3,192.3 | 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) | 0.1489 | 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) | -7.673 | 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) | 0.08130 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.6405 | eV/atom | — | ||
| ↳ | -0.4879 | eV/atom | — |
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
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.