Mg4Ta2O9 — Properties & Data | MatWorld

Mg4Ta2O9

ceramic

· JVASP-22919· Mg4Ta2O9

Mg4Ta2O9 is a magnesium tantalate ceramic compound belonging to the family of complex metal oxides with mixed-valence cation structures. This material is primarily of research and developmental interest rather than an established commercial ceramic, investigated for its potential in high-temperature applications and as a dielectric or functional ceramic in advanced electronics. The tantalate-based ceramic matrix offers promise in specialized environments requiring chemical stability and refractoriness, though industrial adoption remains limited compared to conventional oxides like alumina or yttria-stabilized zirconia.

high-temperature ceramics researchdielectric materials developmentrefractory applicationsadvanced electronics researchtantalate-based composites

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	156.1	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)	82.86	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.080	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.264	eV	DFT · OptB88vdW
↳	5.672	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.184	-	DFT · OptB88vdW
↳	3.349	-	DFT · TBmBJ
Thermoelectric Power Factor(PF)2 entries	0.000934	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000814	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-232.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	401.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.090	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.

Mg4Ta2O9

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental