Y2HfS5 — Properties & Data | MatWorld

Y2HfS5

ceramic

· JVASP-87881· Y2HfS5

Y2HfS5 is a rare-earth hafnium sulfide ceramic compound combining yttrium and hafnium with sulfur, belonging to the family of refractory sulfide ceramics. This material is primarily of research and development interest for high-temperature applications where conventional oxides reach their thermal limits, particularly in specialized aerospace, nuclear, and extreme-environment engineering contexts where its thermal stability and refractory properties are being evaluated.

high-temperature structural ceramicsrefractory applicationsaerospace thermal protectionnuclear fuel cladding researchmaterials research and developmentextreme-environment engineering

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1920	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions
Band Gap(Eg)	1.247	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	9.272	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.081	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.

Y2HfS5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental