MgFe4O9

ceramic

· JVASP-30534· MgFe4O9

MgFe4O9 is a mixed-valence oxide ceramic belonging to the magnesium ferrite family, where magnesium and iron oxides form a complex spinel-related structure. This material is primarily investigated for magnetic and electromagnetic applications, particularly in high-frequency devices, magnetic recording media, and microwave absorbers where its ferrimagnetic properties provide controllable permeability. While not as widely commercialized as simpler ferrites (like nickel-zinc ferrites), MgFe4O9 is notable for researchers developing advanced soft magnetic ceramics with tailored magnetic loss characteristics and thermal stability for demanding electronic and RF applications.

microwave absorberssoft magnetic ceramicshigh-frequency electromagnetic devicesmagnetic recording media researchelectromagnetic shieldingferrite composite development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1540	lb/in³	DFT · OptB88vdW

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

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

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.3455	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.306	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.

MgFe4O9 — Properties & Data | MatWorld

MgFe4O9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental