Effect of the Noble Metals Addition on the Oxidation Behavior of Ni₃Al

Table 1

Spaces between secondary arms and space ratio, taking as reference the undoped alloy.

Alloy	Space between secondary arms (μm)	Space ratio between secondary arms with respect to Ni3Al
Ni3Al	47.00	1.00
Ni3Al +  1% Ag	23.30	0.49
Ni3Al + 1% Au	73.04	1.55
Ni3Al + 1% Pd	17.07	0.36
Ni3Al + 1% Pt	10.24	0.22