Coating designation

Type of flame

Nozzle

Porosity (%)

N1R

Reducing

N1

16.7 ± 1.6

N1N

Neutral

N1

14.7 ± 1.7

N1O

Oxidant

N1

15.9 ± 1.9

N2R

Reducing

N2

17.1 ± 1.4

N2N

Neutral

N2

14.9 ± 2.6

N2O

Oxidant

N2

18.9 ± 1.9

N3R

Reducing

N3

6.6 ± 1.2

N3N

Neutral

N3

6.4 ± 0.7

N3O

Oxidant

N3

8.0 ± 1.0