ErPaO4 — Properties & Data | MatWorld

ErPaO4

ceramic

· JVASP-106089· ErPaO4

ErPaO4 is an erbium phosphate ceramic compound belonging to the rare-earth phosphate family, characterized by high density and rigid elastic properties typical of ionic ceramics. While ErPaO4 itself is primarily a research material, rare-earth phosphates are studied for high-temperature structural applications, thermal barrier coatings, and nuclear fuel host phases due to their thermal stability and chemical durability. Engineers would consider this material family for specialized applications requiring thermal/chemical resistance in extreme environments, though its use remains largely experimental outside niche aerospace and nuclear contexts.

thermal barrier coatingshigh-temperature ceramicsnuclear fuel formsrare-earth compoundsrefractory materialsresearch/development phase

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	30,634.9	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	15,018.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3608	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.088	eV	DFT · OptB88vdW
↳	3.066	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.340	-	DFT · OptB88vdW
↳	4.907	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	3.890	%	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.

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)	-4.011	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.

ErPaO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental