Rubidium oxide (Rb₂O) is an alkali metal oxide ceramic compound that exists primarily as a research material rather than a widely commercialized engineering ceramic. While rubidium oxide itself has limited industrial use due to its high reactivity and hygroscopic nature, it belongs to the alkali oxide family studied for specialized applications in glass formulations, solid-state electrolytes, and advanced ceramics where high ionic conductivity or specific optical properties are required. Engineers would consider this material primarily in laboratory or prototype settings for energy storage devices, specialized glasses, or ionic conductor applications where its unique chemistry offers advantages over more conventional alternatives.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 28.00 | GPa | — | ||
Poisson's Ratio(ν) | 0.3400 | - | — | ||
Shear Modulus(G) | 13.26 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.002 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.273 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 14.11 | - | — | ||
| ↳ | 9.344 | - | — | ||
| ↳ | 6.865 range 3.570–10.16median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.00590 | C/m² | — | ||
| ↳ | 0.000 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -95.94 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.03850 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -1.161 | eV/atom | — | ||
| ↳ | -1.138 | eV/atom | — |