Research Article

Mechanical Properties of Calcium Fluoride-Based Composite Materials

Table 4

Vickers hardness test results for ECM and FA specimens.

GroupCaF2 content Storage conditions
Dry (subgroup 1) Distilled water (subgroup 2)
Mean [VHN]Standard deviation (SD)Mean [VHN]Standard deviation (SD)

ECM 00.0%23.731.3117.674.90
ECM 0.50.5%16.204.6521.676.19
ECM 1.01.0%23.331.5219.561.19
ECM 1.51.5%25.446.0219.866.89
ECM 2.02.0%25.336.8815.782.44
ECM 2.52.5%29.406.1613.332.50
ECM 5.05.0%24.905.7111.831.48

FA 00.0%50.117.0545.000.00
FA 0.50.5%49.252.1643.822.11
FA 1.01.0%52.400.9346.301.95
FA 1.51.5%50.431.9240.137.68
FA 2.02.0%44.594.9849.115.69
FA 2.52.5%47.296.5041.081.57
FA 5.05.0%50.004.0744.002.09