Table 2.
The optimal fitting parameters for prediction b-UPR composite (with 2.5. wt.% of silica particles) hardness; nav—an average slope, A and B are fitting constants for calculation K, x, and y Craford’s parameters.
| Sample | n av | A | B | x | y | K |
|---|---|---|---|---|---|---|
| b-UPR | 2.2499 | 0.0060 | −0.1122 | 0.1111 | −0.0997 | 19.6738 |
| b-UPR/SiO2 | 2.2367 | 0.0121 | −0.2544 | 0.1406 | −0.2275 | 35.7390 |
| b-UPR/SiO2-AMBD | 2.3178 | 0.0078 | −0.2231 | 0.1371 | −0.1952 | 28.1794 |
| b-UPR/SiO2-M | 2.1038 | 0.1024 | −0.6910 | 0.0493 | −0.6569 | 21.2490 |
| b-UPR/SiO2-V | 2.6520 | 0.0214 | −0.9776 | 0.2458 | −0.7373 | 48.0749 |