V5Si3

metal
· V5Si3

V5Si3 is a vanadium silicide intermetallic compound belonging to the refractory metal silicide family, valued for its exceptional high-temperature strength and oxidation resistance. This material is primarily investigated for ultra-high-temperature aerospace applications such as turbine engines, hypersonic vehicle structures, and thermal protection systems where conventional superalloys reach their performance limits. V5Si3 represents an emerging class of materials rather than a widely commercialized product; its potential lies in enabling operation at temperatures significantly above current nickel-based superalloys while maintaining structural integrity, though manufacturing, brittle-to-ductile transition, and cost remain active research challenges.

turbine blades and vaneshypersonic aircraft structuresrocket engine componentsthermal protection systemshigh-temperature coatingsaerospace research and development

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)2 entries
193.8
GPa—
↳
183.7
GPa—
Elastic Compliance Tensor(Sij)
Matrix (redacted)
1/GPa—
Elastic Anisotropy(AU)
0.1708
-—
Elastic Stiffness Tensor(Cij)
Matrix (redacted)
Pa—
Poisson's Ratio(ν)
0.2435
-—
Shear Modulus(G)2 entries
119.9
GPa—
↳
56.76
GPa—
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
PropertyValueUnitConditionsSource
Density(ρ)
5.262
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
0.000
µB—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.06530
eV/atom—
Formation Energy(ΔHf)2 entries
-0.6115
eV/atom—
↳
-0.4366
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

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.