Y5Si3 — Properties & Data | MatWorld

Y5Si3

Name: Y5Si3
Brand: MatWorld

ceramic

· Y5Si3

Y5Si3 is a rare-earth silicide ceramic compound belonging to the family of refractory materials used in high-temperature structural applications. This material is primarily of research and development interest for aerospace and thermal management applications where extreme temperature stability and oxidation resistance are critical. Its use remains largely experimental or specialized, with potential applications in next-generation engine components and thermal barrier systems where conventional ceramics reach their performance limits.

High-temperature structural componentsAerospace engine applicationsThermal barrier coatingsOxidation-resistant materialsResearch and developmentRefractory composites

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1607	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00132	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00129	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-47.96	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-48.30	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.

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)3 entries	-0.8333	eV/atom	Measured
↳	-0.7465	eV/atom	DFT · OptB88vdW
↳	-0.7882 range -0.8333–-0.7431median of 2 measurements	eV/atom	Measured

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

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.

Y5Si3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental