TbSi2

ceramic
· TbSi2

TbSi2 is a terbium disilicide ceramic compound belonging to the metal silicide family, characterized by a hexagonal crystal structure and moderate stiffness. This material is primarily investigated in research contexts for high-temperature structural applications, particularly in aerospace and nuclear environments where its thermal stability and oxidation resistance at elevated temperatures are beneficial. TbSi2 represents part of the rare-earth silicide family that shows promise as a candidate for ultra-high-temperature ceramic matrix composites (CMCs) and thermal barrier coatings, offering potential advantages over conventional alumina-based ceramics in extreme operating conditions, though widespread industrial adoption remains limited compared to established alternatives like SiC or Y2O3.

high-temperature aerospace componentsnuclear reactor environmentsthermal barrier coatingsceramic matrix compositesresearch materials for extreme temperatures

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
85.69
GPa—
Poisson's Ratio(ν)
0.3600
-—
Shear Modulus(G)
29.45
GPa—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
6.065
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
0.000
µB—
Seebeck Coefficient(S)
-6.617
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.03850
eV/atom—
Formation Energy(ΔHf)2 entries
-0.6374
eV/atom—
↳
-0.4994
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.