Tb2Si2O7

ceramic

· JVASP-22884· Tb2Si2O7

Tb2Si2O7 is a rare-earth silicate ceramic compound containing terbium, belonging to the family of pyrosilicate ceramics. This material is primarily investigated in research and development contexts for high-temperature applications where thermal stability and resistance to sintering are critical requirements. It is notable for its potential in thermal barrier coatings and advanced refractory systems, where rare-earth silicates offer improved performance over conventional oxide ceramics in cyclic thermal environments and corrosive atmospheres.

thermal barrier coatingshigh-temperature refractoriesaerospace heat protectionresearch ceramicsenvironmental barrier coatingsadvanced engine components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2164	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.826	eV	DFT · OptB88vdW
↳	6.603	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.542	-	DFT · OptB88vdW
↳	2.919	-	DFT · TBmBJ
Thermoelectric Power Factor(PF)2 entries	0.000492	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000119	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-114.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	348	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)	-3.418	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.

Tb2Si2O7 — Properties & Data | MatWorld

Tb2Si2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental