ErSi — Properties & Data | MatWorld

ErSi

Name: ErSi
Brand: MatWorld

ceramic

· ErSi

ErSi is an erbium silicide ceramic compound that combines a rare-earth element with silicon to create a high-density intermetallic ceramic material. This compound is primarily investigated in research and advanced materials development for applications requiring thermal stability and resistance to oxidation at elevated temperatures. ErSi and related rare-earth silicides are of particular interest in aerospace and high-temperature structural applications where conventional ceramics or metal alloys reach their performance limits.

high-temperature aerospace componentsoxidation-resistant coatingsrare-earth intermetallic researchthermal barrier applicationsrefractory materials developmentadvanced propulsion systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	94.61	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	68.67	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.711	kg/m³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.8000	eV/atom	DFT · OptB88vdW
↳	-0.8799	eV/atom	Measured

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

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.

ErSi

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental