Mg3Si2 — Properties & Data | MatWorld

Mg3Si2

ceramic

· JVASP-99668· Mg3Si2

Mg₃Si₂ is an intermetallic ceramic compound belonging to the magnesium silicide family, characterized by a fixed stoichiometric composition that creates a brittle ceramic phase rather than a ductile metal. This material is primarily of research and developmental interest rather than a mainstream industrial ceramic, studied for potential applications in lightweight composite reinforcement and high-temperature structural applications where magnesium-based phases offer advantages in thermal management and weight reduction. Engineers consider Mg₃Si₂ variants mainly in composite design contexts—either as a reinforcing phase in magnesium matrix composites or as part of multi-phase alloy systems—where the ceramic's stiffness and thermal stability can be leveraged, though processing challenges and brittleness limit its standalone structural use compared to more mature ceramics like alumina or silicon carbide.

magnesium composite reinforcementlightweight structural compositeshigh-temperature phase studiesresearch and development materialsthermal management applicationsintermetallic matrix composites

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	50.28	GPa	DFT · OptB88vdW
Shear Modulus(G)	-7.050	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.198	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	DFT · OptB88vdW
↳	eV	DFT · TBmBJ
Magnetic Moment(μB)	µB	DFT · OptB88vdW

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)	0.1637	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.02894	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.

Mg3Si2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental