SrAl4O7 — Properties & Data | MatWorld

SrAl4O7

ceramic

· JVASP-19071· SrAl4O7

SrAl4O7 is a strontium aluminate ceramic compound belonging to the family of aluminate ceramics, which are known for their refractoriness and chemical stability at elevated temperatures. This material is primarily studied for specialized applications requiring thermal stability, such as high-temperature insulators, refractory linings, and potentially as a phosphor host material in luminescent applications. Engineers consider strontium aluminates over standard alumina when thermal cycling resistance, specific chemical compatibility, or photonic properties are critical design factors, though this particular composition remains more common in research contexts than as a commodity engineering ceramic.

high-temperature refractoriesthermal insulation systemsceramic coatingsphosphor hostsspecialty ceramics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.179	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.995	eV	DFT · OptB88vdW
↳	6.223	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.805	-	DFT · OptB88vdW
↳	2.266	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000956	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00128	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-123.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	285.5	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)	0.01400	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.318	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.

SrAl4O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental