KSe — Properties & Data | MatWorld

KSe

ceramic

· KSe

KSe is a ceramic compound composed of potassium and selenium, representing a chalcogenide ceramic material family. While not widely documented in mainstream engineering applications, this material exists primarily in research contexts for its potential ionic and electronic properties typical of alkali metal selenides. Engineers might encounter KSe in specialized applications requiring selenium-based ceramics, such as optical systems, solid-state ionics, or thermal management in research settings, though more established alternatives typically dominate industrial practice.

experimental ceramics researchsolid-state ionic conductorsoptical/photonic materials developmentthermal interface researchsemiconductor device platformshigh-temperature chemistry applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	16.59	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	4.110	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.686	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.7390	eV	DFT · OptB88vdW
↳	1.799	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	5.064 range 3.854–6.274median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.476	-	DFT · TBmBJ
Magnetic Moment(μB)	0.9960	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.04126	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	27.36	%	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)	0.4601	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5836	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.

KSe

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental