GaPO4 is a gallium phosphate ceramic compound belonging to the family of III-V phosphide ceramics, known for its crystalline structure and piezoelectric properties. It is primarily used in high-temperature acoustic and electronic device applications, particularly in resonators, filters, and sensor systems where superior thermal stability and frequency precision are required beyond what conventional quartz materials can provide. This material is notable for its potential in aerospace, defense, and harsh-environment electronics where conventional piezoelectric ceramics degrade, making it a research-focused alternative for next-generation high-temperature transducers and frequency control devices.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 3,211.1 | ksi | — | ||
Poisson's Ratio(ν) | 0.1100 | - | — | ||
Shear Modulus(G) | 3,859.5 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1196 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.565 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 5.428 | - | — | ||
| ↳ | 3.587 range 2.475–4.700median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.1502 | C/m² | — | ||
| ↳ | 0.1703 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -137.7 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01290 | eV/atom | — | ||
Formation Energy(ΔHf) | -2.173 | eV/atom | — |