K2ZrSi2O7

ceramic

· JVASP-24329· K2ZrSi2O7

K2ZrSi2O7 is a zirconium silicate ceramic compound belonging to the family of alkali-zirconia silicates. This material is primarily of research and specialized industrial interest, valued in applications requiring thermal stability, chemical resistance, and refractoriness at elevated temperatures. It is used in thermal barrier coatings, advanced refractory systems, and high-temperature ceramic matrix composites where its thermal and mechanical stability at extreme conditions provides advantages over conventional silicates.

thermal barrier coatingsrefractory materialshigh-temperature ceramicsaerospace componentschemical processing equipmentadvanced composites

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1189	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.785	eV	DFT · OptB88vdW
↳	5.390	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.153	-	DFT · OptB88vdW
↳	2.679	-	DFT · TBmBJ
Thermoelectric Power Factor(PF)2 entries	0.000482	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000642	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-305.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	283	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)	-2.996	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.

K2ZrSi2O7 — Properties & Data | MatWorld

K2ZrSi2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental