YSeF — Properties & Data | MatWorld

YSeF

ceramic

· JVASP-34555· YSeF

YSeF is a rare-earth fluoride ceramic compound containing yttrium, selenium, and fluorine, belonging to the family of advanced ceramic materials studied for their unique optical and thermal properties. While primarily a research compound rather than a widely commercialized material, yttrium-based fluoride ceramics are investigated for high-temperature applications, optical transparency in the infrared spectrum, and as potential host materials for luminescent dopants. Engineers would consider YSeF variants when designing components requiring thermal stability, chemical inertness, or specialized optical functionality where conventional oxide ceramics fall short.

infrared optics and windowshigh-temperature thermal barriersluminescent material hostsresearch-phase ceramicslaser applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	14,426.9	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	7,904.6	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1785	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.074	eV	DFT · OptB88vdW
↳	1.707	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.505	-	DFT · OptB88vdW
↳	6.207	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	29.09	%	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)	0.1094	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.946	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.

YSeF

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental