Y2SiCO7 — Properties & Data | MatWorld

Y2SiCO7

ceramic

· JVASP-25777· Y2SiCO7

Y2SiCO7 is an yttrium silicate carbonitride ceramic compound that combines silicon, carbon, oxygen, and yttrium into a single-phase material. This represents an emerging class of advanced ceramics designed for high-temperature structural applications where conventional oxides reach their performance limits. The material is primarily of research interest for aerospace and thermal protection systems, where its mixed-chemistry bonding offers potential improvements in creep resistance and thermal stability compared to traditional yttria or silicate ceramics.

high-temperature structural componentsaerospace thermal protectiongas turbine environmentsadvanced ceramic compositesresearch and development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	133.8	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	66.91	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.300	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.892	eV	DFT · OptB88vdW
↳	6.155	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.559	-	DFT · OptB88vdW
↳	3.021	-	DFT · TBmBJ
Thermoelectric Power Factor(PF)2 entries	0.000691	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000367	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-348.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	387.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.061	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

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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.

Y2SiCO7

Mechanical Properties

Physical Properties

Electrical Properties

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