Mg4Si3 — Properties & Data | MatWorld

Mg4Si3

ceramic

· JVASP-112388· Mg4Si3

Mg₄Si₃ is an intermetallic ceramic compound in the magnesium-silicon system, typically encountered as a strengthening phase in magnesium alloys rather than as a bulk material in its own right. This phase is primarily of interest to materials researchers studying magnesium composite systems and lightweight structural alloys, where it forms during solidification or heat treatment to enhance mechanical properties. Its importance lies in its role within magnesium matrix composites and cast magnesium alloys used in automotive and aerospace applications where weight reduction is critical.

magnesium composite reinforcementlightweight structural alloysautomotive engine componentsaerospace weight reductioncasting research and developmenthigh-temperature magnesium systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.129	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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2156	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.03195	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.

Mg4Si3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental