Sodium aluminate (NaAlO₂) is an inorganic ceramic compound formed from sodium and aluminum oxides, commonly encountered as a byproduct or intermediate in alumina processing and alkali-activated cement chemistry. It serves primarily in construction materials, water treatment, and specialized refractory applications where its alkaline reactivity and bonding characteristics are leveraged; it is particularly valued in geopolymer and alkali-activated binder systems as an alternative to conventional Portland cement, offering potential for lower-carbon manufacturing. Engineers select this material class when seeking sustainable binding systems, high-temperature stability, or chemical durability in harsh environments, though real-world deployment typically involves sodium aluminate as a component within composite binders rather than as a monolithic ceramic.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 44.02 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.3400 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | -20.97 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.364 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.000 | eV | DFT · OptB88vdW | ||
| ↳ | 0.000 | eV | DFT · TBmBJ | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 1.649 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.2374 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data