Table 3.

Elemental composition of Sr-Si-CaP coatings.

Elements	Number of the elements on the coating surface, at.%
	200 V	300 V	350 V
Ca	5.4 ± 0.2	8.0 ± 0.5	9.1 ± 0.5
P	20.7 ± 0.3	19.7 ± 0.6	18.9 ± 0.2
O	59.4 ± 0.4	60.3 ± 1.5	61.9 ± 0.5
Ti	13.3 ± 0.5	10.6 ± 1.3	8.8 ± 0.8
Sr	0.8 ± 0.1	0.8 ± 0.1	0.8 ± 0.1
Si	0.5 ± 0.1	0.6 ± 0.1	0.6 ± 0.1
Ca/P	0.3	0.4	0.5