Yb3Si5 — Properties & Data | MatWorld

Yb3Si5

ceramic

· JVASP-14057· Yb3Si5

Yb3Si5 is a rare-earth silicide ceramic compound belonging to the family of refractory intermetallic ceramics, combining ytterbium with silicon to form a high-temperature capable phase. This material is primarily explored in research and advanced aerospace contexts as a potential reinforcement phase in ceramic matrix composites or as a high-temperature structural component, valued for its thermal stability and resistance to oxidation at elevated temperatures. Yb3Si5 represents an emerging alternative to traditional silicates in applications requiring thermal cycling resistance and chemical inertness, though it remains largely in development rather than broad industrial production.

high-temperature compositesaerospace thermal protectionrefractory componentsceramic matrix reinforcementresearch materials

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	54.53	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1900	-	DFT · OptB88vdW
Shear Modulus(G)	42.60	GPa	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	6.272	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000206	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000174	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	0.6200	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.2933	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02330	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4352	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Yb3Si5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental