Research Article
Mechanical Properties of Calcium Fluoride-Based Composite Materials
Table 4
Vickers hardness test results for ECM and FA specimens.
| Group | CaF2 content | Storage conditions | Dry (subgroup 1) | Distilled water (subgroup 2) | Mean [VHN] | Standard deviation (SD) | Mean [VHN] | Standard deviation (SD) |
| ECM 0 | 0.0% | 23.73 | 1.31 | 17.67 | 4.90 | ECM 0.5 | 0.5% | 16.20 | 4.65 | 21.67 | 6.19 | ECM 1.0 | 1.0% | 23.33 | 1.52 | 19.56 | 1.19 | ECM 1.5 | 1.5% | 25.44 | 6.02 | 19.86 | 6.89 | ECM 2.0 | 2.0% | 25.33 | 6.88 | 15.78 | 2.44 | ECM 2.5 | 2.5% | 29.40 | 6.16 | 13.33 | 2.50 | ECM 5.0 | 5.0% | 24.90 | 5.71 | 11.83 | 1.48 |
| FA 0 | 0.0% | 50.11 | 7.05 | 45.00 | 0.00 | FA 0.5 | 0.5% | 49.25 | 2.16 | 43.82 | 2.11 | FA 1.0 | 1.0% | 52.40 | 0.93 | 46.30 | 1.95 | FA 1.5 | 1.5% | 50.43 | 1.92 | 40.13 | 7.68 | FA 2.0 | 2.0% | 44.59 | 4.98 | 49.11 | 5.69 | FA 2.5 | 2.5% | 47.29 | 6.50 | 41.08 | 1.57 | FA 5.0 | 5.0% | 50.00 | 4.07 | 44.00 | 2.09 |
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