Y(SiOs)2 — Properties & Data | MatWorld

Y(SiOs)2

ceramic

· Y(SiOs)2

Yttrium silicate (Y₂SiO₅) is an inorganic ceramic compound belonging to the rare-earth silicate family, valued for its thermal and chemical stability at elevated temperatures. It is primarily investigated for high-temperature structural applications in aerospace and power generation, where it serves as a matrix material in ceramic matrix composites (CMCs) or as a thermal barrier coating component. Engineers select yttrium silicate over conventional oxides because of its superior thermal shock resistance, low thermal conductivity, and chemical compatibility with silicon-based fibers in composite systems.

aerospace engine componentsthermal barrier coatingsceramic matrix compositeshigh-temperature structural applicationspower generation turbinesrefractory materials

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	166.3	GPa	DFT
↳	166.3	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.1368	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)	0.2824	-	DFT · PBE
Shear Modulus(G)2 entries	84.67	GPa	DFT
↳	84.67	GPa	DFT · PBE

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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.

Y(SiOs)2

Mechanical Properties

Regulatory Screening

Environmental