YbKS2 — Properties & Data | MatWorld

YbKS2

ceramic

· JVASP-79441· YbKS2

YbKS₂ is a rare-earth sulfide ceramic compound belonging to the ytterbium potassium sulfide family, representing an experimental material studied primarily for its ionic and thermal properties rather than structural engineering applications. This material exists mainly in research contexts exploring rare-earth sulfide chemistries, solid-state ionics, and potential solid electrolyte or optical applications. Engineers would consider YbKS₂ only in advanced research programs focused on novel ceramic electrolytes, high-temperature chemistry, or specialized optical systems, rather than as a mainstream engineering material for conventional load-bearing or thermal protection roles.

solid-state electrolytes (research)rare-earth ceramics (experimental)high-temperature chemistryoptical material researchionic conductor development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	36.76	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3400	-	DFT · OptB88vdW
Shear Modulus(G)	17.67	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.364	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00237	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00235	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	41.65	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	40.65	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2511	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.519	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.

YbKS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental