Calcium phosphate (CaP) is an inorganic ceramic compound that exists in multiple forms, most commonly as hydroxyapatite, which closely resembles the mineral composition of bone and teeth. It is widely used in biomedical applications where biocompatibility and osseointegration are critical, and is also applied in environmental remediation and industrial catalysis. Engineers select CaP ceramics primarily for their ability to bond directly with living bone tissue, their chemical stability in physiological environments, and their role as a bioresorbable material that can gradually resorb and be replaced by natural bone during healing.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 8,096 | ksi | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.2400 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 5,077.8 | ksi | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.08869 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.3720 | eV | DFT · OptB88vdW | ||
| ↳ | 1.052 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 17.25 | - | DFT · OptB88vdW | ||
| ↳ | 13.22 | - | DFT · PBE | ||
| ↳ | 10.69 range 8.447–12.93median of 2 measurements | - | DFT · PBEsol | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 9.178 | - | DFT · OptB88vdW | ||
| ↳ | 7.156 | - | DFT · TBmBJ | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | DFT · PBE | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | DFT · PBE | ||
Electron Effective Mass(m*e) | 0.2900 | me | DFT · OptB88vdW · 27°C | ||
Hole Effective Mass(m*h) | 0.2100 | me | DFT · OptB88vdW · 27°C | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij)2 entries | 0.00190 | C/m² | DFT · OptB88vdW | ||
| ↳ | 0.09831 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE | ||
Thermoelectric Power Factor(PF)2 entries | 0.00372 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00151 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -219 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 183.8 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 32.27 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -1.230 | 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